contract BurnableToken is StandardToken, TokenControl {

    event Burn(address indexed burner, uint256 value);

 
    /**
    * @dev Burns a specific amount of tokens.
    * @param _value The amount of token to be burned.
    */
    function burn(uint256 _value) onlyCOO whenNotPaused public {
        _burn(_value);
    }

    function _burn( uint256 _value) internal {
        require(_value <= balances[cfoAddress]);
        // no need to require value <= totalSupply, since that would imply the
        // sender's balance is greater than the totalSupply, which *should* be an assertion failure

        balances[cfoAddress] = balances[cfoAddress].sub(_value);
        totalSupply_ = totalSupply_.sub(_value);
        emit Burn(cfoAddress, _value);
        emit Transfer(cfoAddress, address(0), _value);
    }
}
/**
 * @title Burnable Token
 * @dev Token that can be irreversibly burned (destroyed).
 */
function burn(uint256 _value) onlyCOO whenNotPaused public {
    _burn(_value);
}

/**
 * @dev Burns a specific amount of tokens.
 * @param _value The amount of token to be burned.
 */