XX2211X2XX121220
11X2X1X2XX1X1221
11X22X22X11XX221
X12XX12X1X221120
X1X2X1X1X1X2X121
121XX1221XXX1XM1
X11XX1221XX21221
111111XX111X1X21
2X1X11X2X1X21220
22XXX1122X2212M1
