1121121212112121
21X121X112112121
1111XX1X121XX121
111112XX12112121
1111122X12112121
11X12X2112112121
11X1121X121X2121
11X11212121X2121
11211X21121X2121
1121X21X12111121
11212X21121XX121
11X1112112112121
X121112X121XX121
21111121121XX121
2111112X12112121
1XX12X2X1211X121
X1211X2X12112121
21211X2X12112121
21X12112111221M1
