X111X112XX1X1121
X111XX12XX121X21
X121X112X21X1X21
X121XX12X2121121
XX11X112X2121121
XX11XX12X21X1X21
XX21X112XX121X21
XX21XX12XX1X1121
X111X1X2X2121X21
X111XXX2X21X1121
X121X1X2XX121121
X121XXX2XX1X1X21
XX11X1X2XX1X1X21
XX11XXX2XX121121
XX21X1X2X21X1121
XX21XXX2X2121X21
X111X122X2121X21
X111XX22X21X1121
X121X122XX121121
X121XX22XX1X1X21
XX11X122XX1X1X21
XX11XX22XX121121
XX21X122X21X1121
XX21XX22X2121X21
