211121X12211X21M
21X221X12211221M
21212XX12211221M
212221XX2211X21M
21122XXX2211221M
21X121XX2211221M
21X22XX12211X21M
21X121X12211X21M
211221X12211221M
212121XX2211221M
21222XX12211X21M
21X22XXX2211221M
21112XX12211221M
211221XX2211X21M
212121X12211X21M
21X12XX12211221M
