// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

contract UnburnableToken {

string private salt = "value";

mapping(address => uint256) public balances;

uint256 public totalSupply;

uint256 public totalClaimed;

mapping(address => bool) private claimed;

error TokensClaimed();

error AllTokensClaimed();

error UnsafeTransfer(address _to);

constructor() {

totalSupply = 100000000;

}

function claim() public {

if (totalClaimed >= totalSupply) revert AllTokensClaimed();

if (claimed[msg.sender]) revert TokensClaimed();

balances[msg.sender] += 1000;

totalClaimed += 1000;

claimed[msg.sender] = true;

}

function safeTransfer(address _to, uint256 _amount) public {

if (_to == address(0) || _to.balance == 0) revert UnsafeTransfer(_to);

require(balances[msg.sender] >= _amount, "Insufficient balance");

balances[msg.sender] -= _amount;

balances[_to] += _amount;

}

}