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contracts...BitShiftTest.sol

pragma solidity >=0.8 <0.9.0;

/**
 * @title Storage
 * @dev Store & retrieve value in a variable
 * @custom:dev-run-script ./scripts/deploy_with_ethers.ts
 */
contract BitShiftTest {

    uint256 number;

    function storeWithShift(uint256 num, uint256 shift) public {
        number = num << shift;
    }

    function retrieve() public view returns (uint256){
        return number;
    }
}