11121X211112X221
1112112X12111221
1112112XX1121221
11121X21XX11X221
1112112X2X1X1221
11121X21221XX221
1X12112X1X121221
1X121X211211X221
1X121X21X11XX221
1X12112XX21X1221
1X12112X21111221
1X121X212X12X221
1212112X111X1221
12121X211X1XX221
1212112XXX111221
12121X21X212X221
12121X212111X221
1212112X22121221
