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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.17;
import {Dispatcher} from './base/Dispatcher.sol';
import {RewardsCollector} from './base/RewardsCollector.sol';
import {RouterParameters, RouterImmutables} from './base/RouterImmutables.sol';
import {Constants} from './libraries/Constants.sol';
import {Commands} from './libraries/Commands.sol';
import {IUniversalRouter} from './interfaces/IUniversalRouter.sol';
import {ReentrancyLock} from './base/ReentrancyLock.sol';
contract UniversalRouter is RouterImmutables, IUniversalRouter, Dispatcher, RewardsCollector, ReentrancyLock {
    modifier checkDeadline(uint256 deadline) {
        if (block.timestamp > deadline) revert TransactionDeadlinePassed();
        _;
    }
    constructor(RouterParameters memory params) RouterImmutables(params) {}
    /// @inheritdoc IUniversalRouter
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// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
pragma solidity ^0.4.18;
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// File: contracts/interfaces/IUniswapV2Pair.sol
pragma solidity >=0.5.0;
interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);
    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
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pragma solidity ^0.8.0;
/*
Coming to kairos.money
In ancient Greek mythology, Kairos was the god of opportunity, luck, and decisive moments. He was often depicted as a young man with a tuft of hair 
    on his forehead, carrying a scale in one hand and a razor-sharp sickle in the other. One of the most famous stories about Kairos tells of a young 
    man named Meleager.
Meleager was a famous hero of ancient Greece, known for his bravery and strength in battle. One day, he was hunting in the woods when he came across 
    a fierce wild boar. Meleager chased after the beast, determined to bring it down, but the boar was too quick and too strong. Meleager grew tired 
    and frustrated, and just when it seemed like he would have to give up, Kairos appeared before him.
Kairos saw that Meleager was in a moment of great opportunity, and he knew that the young hero had the potential to defeat the boar if he acted 
    quickly and decisively. Kairos whispered in Meleager's ear, telling him to strike at the boar's vulnerable spot just as it turned to charge. 
    Meleager heeded Kairos' advice and landed a fatal blow, felling the beast with a single stroke of his sword.
Thanks to Kairos' intervention, Meleager became known as the greatest hunter in all of Greece, and his fame spread far and wide.
*/
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