XX11X21211112121
X111X21X11X12121
X11112X122112121
X211X21111212121
1X11221X1X212121
11X122112X112121
1211221222X12121
2XX1121122X12121
2X11X22X22212121
2X111211XXX12121
2X1122X211112121
21X1121211212121
2111X2211X112121
211122XX11X12121
22X1X2222XX12121
22X1121X22112121
2211121XXX112121
