X     XX    XXX    X X     XX     XX     XX      X     XX     XX     XX     XX     XX     X      XX     XX     XX     XX     XXX    XX     X      XX     XX     XX   X XX     XXX    XX     XX     XX     XX     X      XX     XX
X_____XX____XXX____X_X_____XX_____XX_____XX______X_____XX_____XX_____XX_____XX_____XX_____X______XX_____XX_____XX_____XX_____XXX____XX_____X______XX_____XX_____XX___X_XX_____XXX____XX_____XX_____XX_____XX_____X______XX_____XX