C31232233133313221211113313331333132313331333133313331333133313311211111223111   >>    C3123223313331322121111331333133313231333133313331333133313331331121111122311   <<    C31232233133313221211113313331333132313331333133313331333133313311211111223113   >>      C31232233133313221211113313331333132313331333133313331333133313311211111223112   >>