XX     XX     XX      X     XX     XX     XX     XX     XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    XXX    X
XXX      X      X      X      X      X      X      X      X      X      X    XXX    XXX    XXX    XXX
___XX_____XX_____XX______X_____XX_____XX_____XX_____XX_____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____XXX____X____________XXX______X______X______X______X______X______X______X______X______X______X____XXX____XXX____XXX____XXX