221X2XX1X2222X21
221X2XX1X22X2212
221X2XX1XX2222M2
221X2X11X222222M
X21X2XX1X2222211
X21X2XX1XX2X2X20
X21X1XX1XX2X2X21
X21X1XX1XX2X2X22
X21X1XX1XX2X2X2M
X21X1X11X1212X22
121X1XX1X1212X22
121X1X11X1212222
121X1X11XX212X22
121X1X11X12X2X22
2X1XXX111X112221
1211XX1111X1X121
X112121X11222X21
