2111212X2X122122
X111212X21112122
2111212X221X2122
1111212X2X1X2122
XX11212X22122122
1X11212X21122122
1X11212X22112122
111X212X12122122
111X212XX2122122
X11121XX22122122
111121XX21122122
111121XX22112122
1X1121XX22122122
1111212X12122X22
1111212XX2122X22
111X212X22122X22
