X     XX     XX     XX     XX      X      X     XX     XX                    X            XX     XX     XX     XX     XX    XXXX                                XX   X XX     XXX    XX     XX     XX     XX     XX     XX     XX     XXX    XX     XX
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X_____XX_____XX_____XX_____XX______X______X_____XX_____XX____________________X____________XX_____XX_____XX_____XX_____XX____XXXX________________________________XX___X_XX_____XXX____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XXX____XX_____XX_XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____