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contracts...Gehirn.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4 <= 0.9;

/** 
 * @title Gehirn von Thomas Wenzlaff
 * @dev Mein Smart Contract mit solidity zum Speichern von IQ auf der Blockchain
 */
contract Gehirn {
    
    uint256 iq = 0;
    
    function store(uint256 neuerIQ) payable public {
        iq = neuerIQ;
    } 
    
    function retrieve() public view returns (uint256){
        return iq;
    }
}