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11XX11X111X21221
212X1121211X1X21
212X112121X21221
212X11X111XX1X21
212X11X111121221
11XX112121XX1X21
11XX112121121221
21XX112111121X21
21XX112111XX1221
112X11X121121X21
112X11X121XX1221
21XX11X1211X1221
21XX11X121X21X21
112X1121111X1221
112X112111X21X21
XX11X1X1XX211112
XX12X111XX211112
X21111X1XX211112
XX111111XX211X12
X2121111XX211X12
X212X1X1XX211X12
XX1211X1XX211212
X211X111XX211212
1222X11112122X21
1222211112122X21
1222X11112122221
1222211112122221
