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1X2X11122X1221M2
112X11X22X1221M2
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XX2211X22X1221M2
11X2111X2XX21111
1121112X21X21111
12X1111X2XX22111
21X1111X2XX21111
2122112X21X22111
2222112X21X21111
2222112X21X22111
111211X1111X1100
111211X1111X2100
112211XX211X1100
112211XX211X2100
