creation_sourcecode: // SPDX-License-Identifier: MIT
  
  pragma solidity 0.8.9;
  
  
  interface IBEP20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(
          address indexed owner,
          address indexed spender,
          uint256 value
      );
  
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(
          address owner,
          address spender
      ) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) external returns (bool);
  }
  
  
  interface IBEP20Metadata is IBEP20 {
      /**
       * @dev Returns the name of the token.
       */
      function name() external view returns (string memory);
  
      /**
       * @dev Returns the symbol of the token.
       */
      function symbol() external view returns (string memory);
  
      /**
       * @dev Returns the decimals places of the token.
       */
      function decimals() external view returns (uint8);
  }
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions. Can only be called by the current owner.
       *
       * NOTE: Renouncing ownership will leave the contract without an owner,
       * thereby disabling any functionality that is only available to the owner.
       */
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(address(0));
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Can only be called by the current owner.
       */
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(
              newOwner != address(0),
              "Ownable: new owner is the zero address"
          );
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  contract CryptoQuokka is Context, IBEP20Metadata, Ownable {
      mapping(address => uint256) private _balances;
  
      mapping(address => mapping(address => uint256)) private _allowances;
  
      uint256 private _totalSupply;
  
      string private _name;
      string private _symbol;
      uint8 private constant _decimals = 18;
      uint256 public constant Supply = 10_000_000_000 * (10 ** _decimals);  // 10 billion
  
      /**
       * @dev Contract constructor.
       * @param name_ The name of the token.
       * @param symbol_ The symbol of the token.
       */
      constructor(string memory name_, string memory symbol_) {
          _name = name_;
          _symbol = symbol_;
          _mint(0x70c8795A2854938099069474b034d46EE3Ff8391, Supply);
    
      }
  
      /**
       * @dev Returns the name of the token.
       * @return The name of the token.
       */
      function name() public view virtual override returns (string memory) {
          return _name;
      }
  
      /**
       * @dev Returns the symbol of the token.
       * @return The symbol of the token.
       */
      function symbol() public view virtual override returns (string memory) {
          return _symbol;
      }
  
      /**
       * @dev Returns the number of decimals used for token display.
       * @return The number of decimals.
       */
      function decimals() public view virtual override returns (uint8) {
          return _decimals;
      }
  
      /**
       * @dev Returns the total supply of the token.
       * @return The total supply.
       */
      function totalSupply() public view virtual override returns (uint256) {
          return _totalSupply;
      }
  
      /**
       * @dev Returns the balance of the specified account.
       * @param account The address to check the balance for.
       * @return The balance of the account.
       */
      function balanceOf(
          address account
      ) public view virtual override returns (uint256) {
          return _balances[account];
      }
  
      /**
       * @dev Transfers tokens from the caller to a specified recipient.
       * @param recipient The address to transfer tokens to.
       * @param amount The amount of tokens to transfer.
       * @return A boolean value indicating whether the transfer was successful.
       */
      function transfer(
          address recipient,
          uint256 amount
      ) public virtual override returns (bool) {
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      /**
       * @dev Returns the amount of tokens that the spender is allowed to spend on behalf of the owner.
       * @param from The address that approves the spending.
       * @param to The address that is allowed to spend.
       * @return The remaining allowance for the spender.
       */
      function allowance(
          address from,
          address to
      ) public view virtual override returns (uint256) {
          return _allowances[from][to];
      }
  
      /**
       * @dev Approves the specified address to spend the specified amount of tokens on behalf of the caller.
       * @param to The address to approve the spending for.
       * @param amount The amount of tokens to approve.
       * @return A boolean value indicating whether the approval was successful.
       */
      function approve(
          address to,
          uint256 amount
      ) public virtual override returns (bool) {
          _approve(_msgSender(), to, amount);
          return true;
      }
  
      /**
       * @dev Transfers tokens from one address to another.
       * @param sender The address to transfer tokens from.
       * @param recipient The address to transfer tokens to.
       * @param amount The amount of tokens to transfer.
       * @return A boolean value indicating whether the transfer was successful.
       */
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) public virtual override returns (bool) {
          _transfer(sender, recipient, amount);
  
          uint256 currentAllowance = _allowances[sender][_msgSender()];
          require(
              currentAllowance >= amount,
              "BEP20: transfer amount exceeds allowance"
          );
          unchecked {
              _approve(sender, _msgSender(), currentAllowance - amount);
          }
  
          return true;
      }
  
      /**
       * @dev Increases the allowance of the specified address to spend tokens on behalf of the caller.
       * @param to The address to increase the allowance for.
       * @param addedValue The amount of tokens to increase the allowance by.
       * @return A boolean value indicating whether the increase was successful.
       */
      function increaseAllowance(
          address to,
          uint256 addedValue
      ) public virtual returns (bool) {
          _approve(_msgSender(), to, _allowances[_msgSender()][to] + addedValue);
          return true;
      }
  
      /**
       * @dev Decreases the allowance granted by the owner of the tokens to `to` account.
       * @param to The account allowed to spend the tokens.
       * @param subtractedValue The amount of tokens to decrease the allowance by.
       * @return A boolean value indicating whether the operation succeeded.
       */
      function decreaseAllowance(
          address to,
          uint256 subtractedValue
      ) public virtual returns (bool) {
          uint256 currentAllowance = _allowances[_msgSender()][to];
          require(
              currentAllowance >= subtractedValue,
              "BEP20: decreased allowance below zero"
          );
          unchecked {
              _approve(_msgSender(), to, currentAllowance - subtractedValue);
          }
  
          return true;
      }
  
      /**
       * @dev Transfers `amount` tokens from `sender` to `recipient`.
       * @param sender The account to transfer tokens from.
       * @param recipient The account to transfer tokens to.
       * @param amount The amount of tokens to transfer.
       */
      function _transfer(
          address sender,
          address recipient,
          uint256 amount
      ) internal virtual {
          require(amount > 0, "BEP20: transfer amount zero");
          require(sender != address(0), "BEP20: transfer from the zero address");
          require(recipient != address(0), "BEP20: transfer to the zero address");
  
          uint256 senderBalance = _balances[sender];
          require(
              senderBalance >= amount,
              "BEP20: transfer amount exceeds balance"
          );
          unchecked {
              _balances[sender] = senderBalance - amount;
          }
          _balances[recipient] += amount;
  
          emit Transfer(sender, recipient, amount);
      }
  
      /**
       * @dev Creates `amount` tokens and assigns them to `account`.
       * @param account The account to assign the newly created tokens to.
       * @param amount The amount of tokens to create.
       */
      function _mint(address account, uint256 amount) internal virtual {
          require(account != address(0), "BEP20: mint to the zero address");
  
          _totalSupply += amount;
          _balances[account] += amount;
          emit Transfer(address(0), account, amount);
      }
  
      /**
       * @dev Destroys `amount` tokens from `account`, reducing the total supply.
       * @param account The account to burn tokens from.
       * @param amount The amount of tokens to burn.
       */
      function _burn(address account, uint256 amount) internal virtual {
          require(account != address(0), "BEP20: burn from the zero address");
  
          uint256 accountBalance = _balances[account];
          require(accountBalance >= amount, "BEP20: burn amount exceeds balance");
          unchecked {
              _balances[account] = accountBalance - amount;
          }
          _totalSupply -= amount;
  
          emit Transfer(account, address(0), amount);
      }
  
      /**
       * @dev Destroys `amount` tokens from the caller's account, reducing the total supply.
       * @param amount The amount of tokens to burn.
       */
      function burn(uint256 amount) external {
          _burn(_msgSender(), amount);
      }
  
      /**
       * @dev Sets `amount` as the allowance of `to` over the caller's tokens.
       * @param from The account granting the allowance.
       * @param to The account allowed to spend the tokens.
       * @param amount The amount of tokens to allow.
       */
      function _approve(
          address from,
          address to,
          uint256 amount
      ) internal virtual {
          require(from != address(0), "BEP20: approve from the zero address");
          require(to != address(0), "BEP20: approve to the zero address");
  
          _allowances[from][to] = amount;
          emit Approval(from, to, amount);
      }
  }