1111111112211111
1111111XX2211211
XX1X11X112211111
XX1X11XXX2211211
XX11111X12211111
XX111111X2211211
111X11XX12211111
111X11X1X2211211
X11X1111X2211111
X11X111X12211211
1X1111X1X2211111
1X1111XX12211211
X11111X112211211
X11111XXX2211111
1X1X111112211211
1X1X111XX2211111
