11XX111121222122
1122111122222222
1XX2122122222122
1X2X122121222222
12XX1X2122222222
12221X2121222122
12X212X121222222
122X12X122222122
X1X2112121222222
X12X112122222122
X1XX121122222222
X122121121222122
XXXX1XX121222122
XX221XX122222222
X2X2111122222122
X22X111121222222
21X21XX122222122
212X1XX121222222
2XXX11X122222222
2X2211X121222122
2XX21X1121222222
2X2X1X1122222122
22XX122121222122
2222122122222222
