@staticmethod
def inside(x: int, y: int, z: int) ->bool:
    """
        Check if X Y and Z are in range of 0-15
        
        Parameters
        ----------
        int x, y, z
            Coordinates
        """
    return x >= 0 and x <= 15 and y >= 0 and y <= 15 and z >= 0 and z <= 15
