X1112121X2X11202
X11XX1X1112X120M
2XX1X1212121X20M
X11X21211X2X2211
22XX1111X1211212
X1111111211XX21M
112X11X1XX1X121M
2X1X1111XX11221M
212X11X12121X21M
11X111X112X11221
