1X1111X111111220
2111X11111X1X220
1X11X11121X11121
211111X12111X121
1XX1X111X111X222
21X111X1X1X11222
11X1111121X1XX2M
2XX1X1X121111X2M
1X21X1X111X1XXM0
2121111111111XM0
1121X1X1X11111M1
2X211111X1X1X1M1
