11121XX222121202
2X12111222121X02
111211X212121102
2X121XX211121102
21121X1211121202
1X121X1211121X02
2X121X1222X21102
11121XX212X21X02
2X12111212X21202
211211X221X21X02
1X1211X221X21202
1112111221X21102
