X      XX     X      X      X      X      X      X      X      X      X      X      X      X                   XXXX                                     X  X     XXX                                                     XXXX   XXX    XXX
XXX    XXX    XX     XX     XX     XX     XX     XX     XX
_____________X______XX_____X______X______X______X______X______X______X______X______X______X______X______X___________________XXXX_____________________________________X__X_____XXX_____________________________________________________XXXX___XXX____XXX_XXX____XXX____XX_____XX_____XX_____XX_____XX_____XX_____XX