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11212X1122X12121
1X212X1111X12121
1X212X1112X12121
XX212X1X21X12121
XX212X1X22X12121
X1212X1211X12121
X1212X1212X12121
21212X1X11X12121
21212X1X12X12121
2X212X1221X12121
2X212X1222X12121
11222111X112X121
11222111X212X121
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