211X1121X121XX12
2111111111211X12
X1111121X2211X12
21111221X1221X12
211121X121211X12
2111X12111211X12
2111X111X1211X12
21111121X221XX12
X11X1121X1211X12
211X1121X2211X12
X1111121X121XX12
2111122121211X12
2111112121221X12
21112121X1221X12
211112X1X1211X12
211111X1X1221X12
21112221X1211X12
X1111121XX211X12
21111121XX21XX12
211X1121XX211X12
