22221X1222212121
2222X21222212121
2222121212212121
2122211212212121
2221211222112121
1122221222X12121
2222221122X12121
1122121222212121
222221122X112121
X122X11222X12121
212X111222X12121
21222X122XX12121
21222112X2112121
2122111X22X12121
2122211X22112121
2121221222112121
2122121222112121
212222122211X121
212XXX1222112121
212222122X112121
2122221122112121
212211122211X121
212211122X112121
2122111122112121
