/**	 I am so confused
     if the real monster is me
     or what's within me
*/

pragma solidity ^0.5.0;

	interface IERC20 {
	  function totalSupply() external view returns (uint256);
	  function balanceOf(address who) external view returns (uint256);
	  function allowance(address owner, address spender) external view returns (uint256);
	  function transfer(address to, uint256 value) external returns (bool);
	  function approve(address spender, uint256 value) external returns (bool);
	  function transferFrom(address from, address to, uint256 value) external returns (bool);

	  event Transfer(address indexed from, address indexed to, uint256 value);
	  event Approval(address indexed owner, address indexed spender, uint256 value);
	}

	library SafeMath {
	  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
	    if (a == 0) {
	      return 0;
	    }
	    uint256 c = a * b;
	    assert(c / a == b);
	    return c;
	  }

	  function div(uint256 a, uint256 b) internal pure returns (uint256) {
	    uint256 c = a / b;
	    return c;
	  }

	  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
	    assert(b <= a);
	    return a - b;
	  }

	  function add(uint256 a, uint256 b) internal pure returns (uint256) {
	    uint256 c = a + b;
	    assert(c >= a);
	    return c;
	  }

	  function ceil(uint256 a, uint256 m) internal pure returns (uint256) {
	    uint256 c = add(a,m);
	    uint256 d = sub(c,1);
	    return mul(div(d,m),m);
	  }
	}

	contract ERC20Detailed is IERC20 {

	  string private _name;
	  string private _symbol;
	  uint8 private _decimals;

	  constructor(string memory name, string memory symbol, uint8 decimals) public {
	    _name = name;
	    _symbol = symbol;
	    _decimals = decimals;
	  }

	  function name() public view returns(string memory) {
	    return _name;
	  }

	  function symbol() public view returns(string memory) {
	    return _symbol;
	  }

	  function decimals() public view returns(uint8) {
	    return _decimals;
	  }
	}

	contract Seppuku is ERC20Detailed {

	  using SafeMath for uint256;
	  mapping (address => uint256) private _balances;
	  mapping (address => mapping (address => uint256)) private _allowed;

	  string constant tokenName = "Seppuku Token";
	  string constant tokenSymbol = "Seppuku!";
	  uint8  constant tokenDecimals = 18;
	  uint256 _totalSupply = 6000000000e18;
	  uint256 public basePercent = 899;

	  constructor() public payable ERC20Detailed(tokenName, tokenSymbol, tokenDecimals) {
	    _mint(msg.sender, _totalSupply);
	  }

	  function totalSupply() public view returns (uint256) {
	    return _totalSupply;
	  }

	  function balanceOf(address owner) public view returns (uint256) {
	    return _balances[owner];
	  }

	  function allowance(address owner, address spender) public view returns (uint256) {
	    return _allowed[owner][spender];
	  }

	  function findNinetyPercent(uint256 value) public view returns (uint256)  {
	    uint256 roundValue = value.ceil(basePercent);
	    uint256 tenPercent = roundValue.mul(basePercent).div(1000);
	    return tenPercent;
	  }

	  function transfer(address to, uint256 value) public returns (bool) {
	    require(value <= _balances[msg.sender]);
	    require(to != address(0));

	    uint256 tokensToBurn = findNinetyPercent(value);
	    uint256 tokensToTransfer = value.sub(tokensToBurn);

	    _balances[msg.sender] = _balances[msg.sender].sub(value);
	    _balances[to] = _balances[to].add(tokensToTransfer);

	    _totalSupply = _totalSupply.sub(tokensToBurn);

	    emit Transfer(msg.sender, to, tokensToTransfer);
	    emit Transfer(msg.sender, address(0), tokensToBurn);
	    return true;
	  }

	  function multiTransfer(address[] memory receivers, uint256[] memory amounts) public {
	    for (uint256 i = 0; i < receivers.length; i++) {
	      transfer(receivers[i], amounts[i]);
	    }
	  }

	  function approve(address spender, uint256 value) public returns (bool) {
	    require(spender != address(0));
	    _allowed[msg.sender][spender] = value;
	    emit Approval(msg.sender, spender, value);
	    return true;
	  }

	  function transferFrom(address from, address to, uint256 value) public returns (bool) {
	    require(value <= _balances[from]);
	    require(value <= _allowed[from][msg.sender]);
	    require(to != address(0));

	    _balances[from] = _balances[from].sub(value);

	    uint256 tokensToBurn = findNinetyPercent(value);
	    uint256 tokensToTransfer = value.sub(tokensToBurn);

	    _balances[to] = _balances[to].add(tokensToTransfer);
	    _totalSupply = _totalSupply.sub(tokensToBurn);

	    _allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);

	    emit Transfer(from, to, tokensToTransfer);
	    emit Transfer(from, address(0), tokensToBurn);

	    return true;
	  }

	  function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
	    require(spender != address(0));
	    _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].add(addedValue));
	    emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
	    return true;
	  }

	  function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
	    require(spender != address(0));
	    _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].sub(subtractedValue));
	    emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
	    return true;
	  }

	  function _mint(address account, uint256 amount) internal {
	    require(amount != 0);
	    _balances[account] = _balances[account].add(amount);
	    emit Transfer(address(0), account, amount);
	  }

	  function burn(uint256 amount) external {
	    _burn(msg.sender, amount);
	  }

	  function _burn(address account, uint256 amount) internal {
	    require(amount != 0);
	    require(amount <= _balances[account]);
	    _totalSupply = _totalSupply.sub(amount);
	    _balances[account] = _balances[account].sub(amount);
	    emit Transfer(account, address(0), amount);
	  }

	  function burnFrom(address account, uint256 amount) external {
	    require(amount <= _allowed[account][msg.sender]);
	    _allowed[account][msg.sender] = _allowed[account][msg.sender].sub(amount);
	    _burn(account, amount);
	  }
	}