1X1212X1221XX120
121XX11X22111X20
X11XX212X22X1120
X1X11122X2211120
1111X1X22XX11X20
11X1112X2X111120
1XX12XX2X2111120
X11212112X2X1120
X2122212X2111220
12121X1122X1XX20
111X111XXX1X1220
1X121X11X2X1X220
