2111X11211121221
21X111X2X1111X21
2111X122111X1221
2112112211121X21
21XXX112X11X1221
21X2X1X21X121221
2212X1221X111221
1112212211121221
1XX22112X1111X21
11222122111X1221
2X1X11X2X11X1221
21XX112211121221
212X112211121221
21111121X1121221
1X111121211X1X21
1X1XX12111111X21
211X2121211X1221
2112X12111111221
1X122121X1121X21
1112X1XXX1121221
XX11X1XX21121221
2X1XX1XX11121221
1X11111111121X21
XXXXX111X1X21221
XX11X11111121X21
2XXX2111X1X21221
1X11X1X1X1121X21
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2111X1X1X11X1X21
