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library SafeMath    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function add(uint256 a, uint256 b) interface ERC20    - function totalSupply()    - function balanceOf(address _who)    - function transfer(address _to, uint25 ...    - function allowance(address _owner, ad ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...  contract Ownable    - function transferOwnership(address ne ...  contract Pauseable is Ownable    - function pause()    - function unpause()  contract FrescoToken is ERC20, Pau ... *    - function FrescoToken()    - function totalSupply()    - function balanceOf(address _who)    - function transfer(address _to, uint25 ...    - function allowance(address _owner, ad ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function increaseApproval(address _sp ...    - function decreaseApproval(address _sp ...    - function burn(uint256 _value)

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/**
 *Submitted for verification at Etherscan.io on 2018-04-12
*/
pragma solidity ^0.4.21;
/**
* @title Safemath library taken from openzeppline
*
**/
library SafeMath {
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        assert(c / a == b);
        return c;
    }
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a / b;
        return c;
    }
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