1111XX2211X11211
X1112X2211X11211
2111XX2211X11211
11X12X2211X11211
X1X1XX2211X11211
21X12X2211X11211
1121XX2211X11211
X1212X2211X11211
2121XX2211X11211
11112X2211X11211
X111XX2211X11211
21112X2211X11211
11X1XX2211X11211
X1X12X2211X11211
21X1XX2211X11211
11212X2211X11211
X121XX2211X11211
21212X2211X11211
