112121211112121M
1121212X2112121M
11212XX12112121M
112X21X12112121M
112X2XXX1112121M
112X2X212112121M
212121XX1112121M
212121212112121M
21212X2X1112121M
212X212X1112121M
212X2XX11112121M
212X2XXX2112121M
