문제Claim ownership of the contract below to complete this level.// SPDX-License-Identifier: MITpragma solidity ^0.8.0;contract Telephone { address public owner; constructor() { owner = msg.sender; } function changeOwner(address _owner) public { if (tx.origin != msg.sender) { owner = _owner; } }} 문제해결contract TelephoneSolv { address target; con..