pragma solidity  ^0.5.2;

contract c1{
    function address2String(address _add) external pure returns (string memory){
        bytes32 value = bytes32(uint256(_add));
        bytes memory letter = "0123456789abcdef";

        bytes memory s = new bytes(40);
        for (uint i = 0; i < 20; i++) {
            s[i*2] = letter[uint(uint8(value[i + 12] >> 4))];
            s[1+i*2] = letter[uint(uint8(value[i + 12] & 0x0f))];
        }
        return string(s);
    }
}

contract c2{

    function bytes32ToBytes(bytes32 value) internal pure returns (string memory) {
        //bytes32 value = bytes32(uint256(data));
        bytes memory letter = "0123456789abcdef";

        bytes memory s = new bytes(40);
        for (uint i = 0; i < 20; i++) {
            s[i*2] = letter[uint(uint8(value[i + 12] >> 4))];
            s[1+i*2] = letter[uint(uint8(value[i + 12] & 0x0f))];
        }
        return string(s);
    }

    function getAddress() public returns (bytes memory,bytes32, bytes memory  ,string memory,string memory){
        string memory _ad;
        c1 x = new c1();
        _ad = x.address2String(address(this));

        string memory _add = "dc04977a2078c8ffdf086d618d1f961b6c546222";
        bytes memory b = bytes(_add);
        bytes memory res = new bytes(40);
        bytes32 hash1 = keccak256(bytes(_add));
        string memory st_hash = bytes32ToBytes(hash1);
        bytes memory hash = bytes(st_hash);

        for (uint i=0;i<res.length;i++){
            if(uint8(b[i])>96 && uint8(b[i])<103){
                if (uint8(hash[i])>56) res[i] = byte(uint8(b[i])-32);
                else res[i] = b[i];
                //res[i] = 'x';
            }
            else res[i] = b[i];
        }
        return (b, hash1, hash, _add , string(res));
    }
}