XX    XXX    XXX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX    XXXX    XX                                                                                         X      X      X      X      X      X
X      X
______XX____XXX____XXX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX____XXXX____XX_________________________________________________________________________________________X______X______X______X______X______X_X______X