112XXX11X1212X11
11X1XX2121XXX211
21X1XX2121XXX211
1121XX2121XXX211
2121XX2121XXX211
11XXXX2121XXX211
21XXXX2121XXX211
112XXX2121XXX211
212XXX2121XXX211
11X1X22121XXX211
21X1X22121XXX211
1121X22121XXX211
2121X22121XXX211
11XXX22121XXX211
21XXX22121XXX211
112XX22121XXX211
212XX22121XXX211
