Contract Source Code:
File 1 of 1 : MyToken
pragma solidity ^0.4.11;
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address public owner;
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
function Ownable() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {
require(newOwner != address(0));
owner = newOwner;
}
}
/**
* @title Authorizable
* @dev Allows to authorize access to certain function calls
*/
contract Authorizable is Ownable {
address[] authorizers;
mapping(address => uint) authorizerIndex;
/**
* @dev Throws if called by any account tat is not authorized.
*/
modifier onlyAuthorized {
require(isAuthorized(msg.sender));
_;
}
/**
* @dev Contructor that authorizes the msg.sender.
*/
function Authorizable() public {
authorizers.length = 2;
authorizers[1] = msg.sender;
authorizerIndex[msg.sender] = 1;
}
/**
* @dev Function to get a specific authorizer
* @param _authorizerIndex index of the authorizer to be retrieved.
* @return The address of the authorizer.
*/
function getAuthorizer(uint _authorizerIndex) external constant returns(address) {
return address(authorizers[_authorizerIndex + 1]);
}
/**
* @dev Function to check if an address is authorized
* @param _addr the address to check if it is authorized.
* @return boolean flag if address is authorized.
*/
function isAuthorized(address _addr) public constant returns(bool) {
return authorizerIndex[_addr] > 0;
}
/**
* @dev Function to add a new authorizer
* @param _addr the address to add as a new authorizer.
*/
function addAuthorized(address _addr) external onlyOwner {
authorizerIndex[_addr] = authorizers.length;
authorizers.length++;
authorizers[authorizers.length - 1] = _addr;
}
}
/**
* @title ExchangeRate
* @dev Allows updating and retrieveing of Conversion Rates for BON tokens
*
* ABI
* [{"constant":false,"inputs":[{"name":"_symbol","type":"string"},{"name":"_rate","type":"uint256"}],"name":"updateRate","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_authorizerIndex","type":"uint256"}],"name":"getAuthorizer","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"data","type":"uint256[]"}],"name":"updateRates","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_symbol","type":"string"}],"name":"getRate","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"addAuthorized","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"rates","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"isAuthorized","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"view"},{"anonymous":false,"inputs":[{"indexed":false,"name":"timestamp","type":"uint256"},{"indexed":false,"name":"symbol","type":"bytes32"},{"indexed":false,"name":"rate","type":"uint256"}],"name":"RateUpdated","type":"event"}]
*/
contract ExchangeRate is Ownable, Authorizable {
event RateUpdated(uint timestamp, bytes32 symbol, uint rate);
mapping(bytes32 => uint) public rates;
/**
* @dev Allows the current owner to update a single rate.
* @param _symbol The symbol to be updated.
* @param _rate the rate for the symbol.
*/
function updateRate(string _symbol, uint _rate) public onlyAuthorized {
rates[keccak256(_symbol)] = _rate;
RateUpdated(now, keccak256(_symbol), _rate);
}
/**
* @dev Allows the current owner to update multiple rates.
* Rate name should be hashed by keccak256: https://emn178.github.io/online-tools/keccak_256.html
* [
* "0x9696f33f18e6c2c578fe917dd3f5e1613cc0add242942840b709f9ec392cfc46",1234567,
* "0x8f6c75b19293b5703037f47598d72a91641249e6ecec91fa499fb6d66a92e867",54321
* ]
* @param data an array that alternates keccak256 hashes of the symbol and the corresponding rate .
*/
function updateRates(uint[] data) public onlyAuthorized {
require(data.length % 2 == 0);
uint i = 0;
while (i < data.length / 2) {
bytes32 symbol = bytes32(data[i * 2]);
uint rate = data[i * 2 + 1];
rates[symbol] = rate;
RateUpdated(now, symbol, rate);
i++;
}
}
/**
* @dev Allows the anyone to read the current rate.
* @param _symbol the symbol to be retrieved.
*/
function getRate(string _symbol) public constant returns(uint) {
return rates[keccak256(_symbol)];
}
}
/**
* Math operations with safety checks
*/
library SafeMath {
function mul(uint a, uint b) internal returns (uint) {
uint c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint a, uint b) internal returns (uint) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
function sub(uint a, uint b) internal returns (uint) {
assert(b <= a);
return a - b;
}
function add(uint a, uint b) internal returns (uint) {
uint c = a + b;
assert(c >= a);
return c;
}
function max64(uint64 a, uint64 b) internal constant returns (uint64) {
return a >= b ? a : b;
}
function min64(uint64 a, uint64 b) internal constant returns (uint64) {
return a < b ? a : b;
}
function max256(uint256 a, uint256 b) internal constant returns (uint256) {
return a >= b ? a : b;
}
function min256(uint256 a, uint256 b) internal constant returns (uint256) {
return a < b ? a : b;
}
}
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20Basic {
uint public totalSupply;
function balanceOf(address who) public constant returns (uint);
function transfer(address to, uint value) public;
event Transfer(address indexed from, address indexed to, uint value);
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) public constant returns (uint);
function transferFrom(address from, address to, uint value) public;
function approve(address spender, uint value) public;
event Approval(address indexed owner, address indexed spender, uint value);
}
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint;
mapping(address => uint) balances;
/**
* @dev Fix for the ERC20 short address attack.
*/
modifier onlyPayloadSize(uint size) {
require(msg.data.length >= size + 4);
_;
}
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint _value) public onlyPayloadSize(2 * 32) {
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public constant returns (uint balance) {
return balances[_owner];
}
}
/**
* @title Standard ERC20 token
* @dev Implemantation of the basic standart token.
*/
contract StandardToken is BasicToken, ERC20 {
mapping (address => mapping (address => uint)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint _value) public onlyPayloadSize(3 * 32) {
var _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// if (_value > _allowance) throw;
balances[_to] = balances[_to].add(_value);
balances[_from] = balances[_from].sub(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
}
/**
* @dev Aprove the passed address to spend the specified amount of tokens on beahlf of msg.sender.
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint _value) public {
// To change the approve amount you first have to reduce the addresses`
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
}
/**
* @dev Function to check the amount of tokens than an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint specifing the amount of tokens still avaible for the spender.
*/
function allowance(address _owner, address _spender) public constant returns (uint remaining) {
return allowed[_owner][_spender];
}
}
/**
* @title Mintable token
*/
contract MintableToken is StandardToken, Ownable {
event Mint(address indexed to, uint value);
event MintFinished();
bool public mintingFinished = false;
uint public totalSupply = 0;
modifier canMint() {
require(!mintingFinished);
_;
}
/**
* @dev Function to mint tokens
* @param _to The address that will recieve the minted tokens.
* @param _amount The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint _amount) public onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() public onlyOwner returns (bool) {
mintingFinished = true;
MintFinished();
return true;
}
}
/**
* @title MyToken
* @dev The main BON token contract
*
* ABI
* [{"constant":true,"inputs":[],"name":"mintingFinished","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[],"name":"startTrading","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[{"name":"_authorizerIndex","type":"uint256"}],"name":"getAuthorizer","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"mint","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"tradingStarted","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[],"name":"finishMinting","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"addAuthorized","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"isAuthorized","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"view"},{"anonymous":false,"inputs":[{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[],"name":"MintFinished","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]
*/
contract MyToken is MintableToken, Authorizable {
string public name = "Bonpay Token";
string public symbol = "BON";
uint public decimals = 18;
bool public tradingStarted = false;
/**
* @dev modifier that throws if trading has not started yet
*/
modifier hasStartedTrading() {
require(tradingStarted);
_;
}
function mint(address _to, uint _amount) public onlyAuthorized canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
return true;
}
/**
* @dev Function to stop minting new tokens.
* @return True if the operation was successful.
*/
function finishMinting() public onlyAuthorized returns (bool) {
mintingFinished = true;
MintFinished();
return true;
}
/**
* @dev Allows the owner to enable the trading. This can not be undone
*/
function startTrading() public onlyOwner {
tradingStarted = true;
}
/**
* @dev Allows anyone to transfer the BON tokens once trading has started
* @param _to the recipient address of the tokens.
* @param _value number of tokens to be transfered.
*/
function transfer(address _to, uint _value) public hasStartedTrading {
super.transfer(_to, _value);
}
/**
* @dev Allows anyone to transfer the BON tokens once trading has started
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint _value) public hasStartedTrading {
super.transferFrom(_from, _to, _value);
}
}
/**
* @title MainSale
* @dev The main BON token sale contract
*
* ABI
* [{"constant":false,"inputs":[{"name":"_multisigVault","type":"address"}],"name":"setMultisigVault","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[{"name":"_authorizerIndex","type":"uint256"}],"name":"getAuthorizer","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[],"name":"exchangeRate","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[],"name":"altDeposits","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"recipient","type":"address"},{"name":"tokens","type":"uint256"}],"name":"authorizedCreateTokens","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[],"name":"finishMinting","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_exchangeRate","type":"address"}],"name":"setExchangeRate","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[{"name":"_token","type":"address"}],"name":"retrieveTokens","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[{"name":"totalAltDeposits","type":"uint256"}],"name":"setAltDeposit","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"start","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"recipient","type":"address"}],"name":"createTokens","outputs":[],"payable":true,"type":"function","stateMutability":"payable"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"addAuthorized","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"multisigVault","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":false,"inputs":[{"name":"_hardcap","type":"uint256"}],"name":"setHardCap","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":false,"inputs":[{"name":"_start","type":"uint256"}],"name":"setStart","outputs":[],"payable":false,"type":"function","stateMutability":"nonpayable"},{"constant":true,"inputs":[],"name":"token","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function","stateMutability":"view"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"isAuthorized","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function","stateMutability":"view"},{"inputs":[{"name":"_token","type":"address"},{"name":"_exchangeRate","type":"address"},{"name":"_multisigVault","type":"address"},{"name":"_start","type":"uint256"}],"payable":false,"type":"constructor","stateMutability":"nonpayable"},{"payable":true,"type":"fallback","stateMutability":"payable"},{"anonymous":false,"inputs":[{"indexed":false,"name":"recipient","type":"address"},{"indexed":false,"name":"ether_amount","type":"uint256"},{"indexed":false,"name":"pay_amount","type":"uint256"},{"indexed":false,"name":"exchangerate","type":"uint256"}],"name":"TokenSold","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"recipient","type":"address"},{"indexed":false,"name":"pay_amount","type":"uint256"}],"name":"AuthorizedCreate","type":"event"},{"anonymous":false,"inputs":[],"name":"MainSaleClosed","type":"event"}]
*/
contract MainSale is Ownable, Authorizable {
using SafeMath for uint;
event TokenSold(address recipient, uint ether_amount, uint pay_amount, uint exchangerate);
event AuthorizedCreate(address recipient, uint pay_amount);
event MainSaleClosed();
MyToken public token;
address public multisigVault;
uint hardcap = 200000 ether;
ExchangeRate public exchangeRate;
uint public altDeposits = 0;
uint public start = 0;
/**
* @dev modifier to allow token creation only when the sale IS ON
*/
modifier saleIsOn() {
require(now > start && now < start + 28 days);
_;
}
/**
* @dev modifier to allow token creation only when the hardcap has not been reached
*/
modifier isUnderHardCap() {
require(multisigVault.balance + altDeposits <= hardcap);
_;
}
function MainSale(address _token, address _exchangeRate, address _multisigVault, uint _start) public onlyOwner {
token = MyToken(_token);
setExchangeRate(_exchangeRate);
setMultisigVault(_multisigVault);
setStart(_start);
}
/**
* @dev Allows anyone to create tokens by depositing ether.
* @param recipient the recipient to receive tokens.
*/
function createTokens(address recipient) public isUnderHardCap saleIsOn payable {
uint rate = exchangeRate.getRate("ETH");
uint tokens = rate.mul(msg.value).div(1 ether);
token.mint(recipient, tokens);
require(multisigVault.send(msg.value));
TokenSold(recipient, msg.value, tokens, rate);
}
/**
* @dev Allows to set the toal alt deposit measured in ETH to make sure the hardcap includes other deposits
* @param totalAltDeposits total amount ETH equivalent
*/
function setAltDeposit(uint totalAltDeposits) public onlyAuthorized {
altDeposits = totalAltDeposits;
}
/**
* @dev Allows authorized acces to create tokens. This is used for Bitcoin and ERC20 deposits
* @param recipient the recipient to receive tokens.
* @param tokens number of tokens to be created.
*/
function authorizedCreateTokens(address recipient, uint tokens) public onlyAuthorized {
token.mint(recipient, tokens);
AuthorizedCreate(recipient, tokens);
}
/**
* @dev Allows the owner to set the hardcap.
* @param _hardcap the new hardcap
*/
function setHardCap(uint _hardcap) public onlyOwner {
hardcap = _hardcap;
}
/**
* @dev Allows the owner to set the starting time.
* @param _start the new _start
*/
function setStart(uint _start) public onlyOwner {
start = _start;
}
/**
* @dev Allows the owner to set the multisig contract.
* @param _multisigVault the multisig contract address
*/
function setMultisigVault(address _multisigVault) public onlyOwner {
if (_multisigVault != address(0)) {
multisigVault = _multisigVault;
}
}
/**
* @dev Allows the owner to set the exchangerate contract.
* @param _exchangeRate the exchangerate address
*/
function setExchangeRate(address _exchangeRate) public onlyOwner {
exchangeRate = ExchangeRate(_exchangeRate);
}
/**
* @dev Allows the owner to finish the minting. This will create the
* restricted tokens and then close the minting.
* to this owner.
*/
function finishMinting() public onlyOwner {
uint issuedTokenSupply = token.totalSupply();
uint restrictedTokens = issuedTokenSupply.mul(49).div(51);
token.mint(multisigVault, restrictedTokens);
token.finishMinting();
MainSaleClosed();
}
/**
* @dev Allows the owner to transfer ERC20 tokens to the multi sig vault
* @param _token the contract address of the ERC20 contract
*/
function retrieveTokens(address _token) public onlyAuthorized {
ERC20 othertoken = ERC20(_token);
othertoken.transfer(multisigVault, othertoken.balanceOf(this));
}
/**
* @dev Fallback function which receives ether and created the appropriate number of tokens for the
* msg.sender.
*/
function() external payable {
createTokens(msg.sender);
}
}