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11X2X11111121210
1X12X11111X21210
1X12X112X1121210
1XX1X111X1121210
1XX1X11211X21210
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X112111211X21210
X1X1111111X21210
X1X11112X1121210
XX111112X1X21210
XXX21111X1X21210
21112111X1X21210
21X22112X1X21210
2X11211111121210
2XX2211211121210
