1X1211X21X1X1XMM
1X1211X21XX2XXMM
12122XX2XX1X1XMM
12122XX2XXX2XXMM
121221X21XXX1XMM
121221X21X12XXMM
1X121XX2XXXX1XMM
1X121XX2XX12XXMM
12121XX21X121XMM
12121XX21XXXXXMM
1X1221X2XX121XMM
1X1221X2XXXXXXMM
121211X2XX1XXXMM
121211X2XXX21XMM
1X122XX21X1XXXMM
1X122XX21XX21XMM
