C31232233133313221211113313331333132313331333133313331333133313332212312111   >>    C3123223313331322121111331333133313231333133313331333133313331333221231211   <<    C31232233133313221211113313331333132313331333133313331333133313332212312113   >>      C31232233133313221211113313331333132313331333133313331333133313332212312112   >>