C31232233133313221211113313331333133313331212111133132212211311   >>    C3123223313331322121111331333133313331333121211113313221221131   <<    C31232233133313221211113313331333133313331212111133132212211313   >>      C31232233133313221211113313331333133313331212111133132212211312   >>