1X2111X111121122
1X21112X11121X22
1X21XXXX11121X22
1X21XX2111121122
12211XXX11121122
12211X2111121X22
1221X1X111121X22
1221X12X11121122
XX211XX111121X22
XX211X2X11121122
XX21X1XX11121122
XX21X12111121X22
X22111XX11121X22
X221112111121122
X221XXX111121122
X221XX2X11121X22
