XX11X11XX111XX11
111XX1X2XXX21211
2X1X112X1X22X111
2211X1XX1X11XX11
XX1XX12212X21212
X11X11XXX122X112
X21111X112XX1X12
1X111111XXXX1X12
XX1X112X122X1X21
X211X1XX12121221
2X1XX1221XX1XX21
221111X11XX2X121
XX111111X1X2X122
X11XX1X2X1X1XX22
1X11X11XXX121222
111X11XXXX2X1X22
