21111X222121X221
21X21X1121212121
21211X2X2121X221
X122111X1X212221
2112111X2X212121
X1121XX11X212121
X1XX1XX211212X21
X12X1XX211212X21
212112111X21X112
212X12XX2X212X12
2122122X2X212212
X1211XXX12212112
X12X1X11X221XX12
212X1X11X221XX12
21221X112221X212
21221XXX22212212
X1X1121112212X21
21X112112X21X121
X1XX1211XX21X121
21XX1211X2212X21
21X212111X21X121
X1X2121122212X21
X12111111121X121
212X1112X2212X21
X12X1111X121X121
2122111222212X21
X11212X121212112
X11112XX1X21XX12
211112XX1X21XX12
211112X21221X212
211212X222212212
21X112X212212112
21XX12X12X212212
