X X    XXX    X X    X X      XX   X XX   X XX   XXXX   XXXX   XX     XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XX
XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX   XXXX
__X_X____XXX____X_X____X_X______XX___X_XX___X_XX___XXXX___XXXX___XX_____XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XX___________XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX___XXXX