X1X12222X2XXX122
X1X1221112XX2122
XXX1122212XX2122
X1X1222212112122
21X122XX12XX2122
11X1222112XX2122
11X1221212XX2122
XXX1222212XXX122
X1X11222X2XX2122
XXX12222X2XX2122
X1X1122212XXX122
X1X1222X121X2122
X1X1222X12X12122
21X1222212X12122
X1X122X2121X2122
X1X122X212X12122
21X12222121X2122
