X      X     XX     XX     XX    X X    XXXX                                                    XX     XX     XX
XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     XX     X      X      X      X      X      X
_____________________________________________________________________________________________________________________________________X______X_____XX_____XX_____XX____X_X____XXXX____________________________________________________XX_____XX_____XXXX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____XX_____X______X______X______X______X______X