X     XX            XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX            XX     XX    XXXX    XX     XX     XX     XX          XXXX     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     X
X_____XX____________XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX____________XX_____XX____XXXX____XX_____XX_____XX_____XX__________XXXX_____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_____