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// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.8.0;
pragma experimental ABIEncoderV2;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/math/Math.sol";
import "tornado-anonymity-mining/contracts/interfaces/ITornadoInstance.sol";
import "torn-token/contracts/ENS.sol";
import "./InstanceRegistry.sol";
import "../RelayerRegistry.sol";
contract TornadoRouter is EnsResolve {
  using SafeERC20 for IERC20;
  event EncryptedNote(address indexed sender, bytes encryptedNote);
  address public immutable governance;
  InstanceRegistry public immutable instanceRegistry;
  RelayerRegistry public immutable relayerRegistry;
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// File: contracts/MerkleTreeWithHistory.sol
// https://tornado.cash
/*
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*    88                                              88             d8'   `88                   88
*    88    .d8888b. 88d888b. 88d888b. .d8888b. .d888b88 .d8888b.    88        .d8888b. .d8888b. 88d888b.
*    88    88'  `88 88'  `88 88'  `88 88'  `88 88'  `88 88'  `88    88        88'  `88 Y8ooooo. 88'  `88
*    88    88.  .88 88       88    88 88.  .88 88.  .88 88.  .88 dP Y8.   .88 88.  .88       88 88    88
*    dP    `88888P' dP       dP    dP `88888P8 `88888P8 `88888P' 88  Y88888P' `88888P8 `88888P' dP    dP
* ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
*/
pragma solidity ^0.5.8;
library Hasher {
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// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
import "@openzeppelin/contracts/proxy/TransparentUpgradeableProxy.sol";
/**
 * @dev TransparentUpgradeableProxy where admin is allowed to call implementation methods.
 */
contract AdminUpgradeableProxy is TransparentUpgradeableProxy {
  /**
   * @dev Initializes an upgradeable proxy backed by the implementation at `_logic`.
   */
  constructor(
    address _logic,
    address _admin,
    bytes memory _data
  ) public payable TransparentUpgradeableProxy(_logic, _admin, _data) {}
  /**
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// SPDX-License-Identifier: MIT
pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;
import { GovernanceGasUpgrade } from "tornado-governance/contracts/v2-vault-and-gas/gas/GovernanceGasUpgrade.sol";
import { TornadoStakingRewards } from "../staking/TornadoStakingRewards.sol";
/**
 * @notice The Governance staking upgrade. Adds modifier to any un/lock operation to update rewards
 * @dev CONTRACT RISKS:
 *      - if updateRewards reverts (should not happen due to try/catch) locks/unlocks could be blocked
 *      - generally inherits risks from former governance upgrades
 */
contract GovernanceStakingUpgrade is GovernanceGasUpgrade {
  TornadoStakingRewards public immutable Staking;
  event RewardUpdateSuccessful(address indexed account);
  event RewardUpdateFailed(address indexed account, bytes indexed errorData);
  constructor(
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