XX     XX      X      X     XX     XX    XXX    XXX    XXX    XXX    XXX    XXX     XX     XX                 XXXX                                      X  X     XXX                                                     XXXX   XXX    XXX
XXX    XXX    XX     XX     XX     XX     XX     XX     XX
_____________XX_____XX______X______X_____XX_____XX____XXX____XXX____XXX____XXX____XXX____XXX_____XX_____XX_________________XXXX______________________________________X__X_____XXX_____________________________________________________XXXX___XXX____XXX_XXX____XXX____XX_____XX_____XX_____XX_____XX_____XX_____XX