1121111111111121
1X21X1X1XXXX1121
11X1X1111XXX1X10
XX21111111111X21
112121XXX1111X21
112111X1122XX121
1X21X111X112X110
1X21111X1XX11111
X121X1X1XXX21110
1XX121X111111120
11X11111X22X1X11
112121111XXXXX20
XX21X11X122X1X11
X1X12111X2X11110
112111XX11121X11
