C31232233133313221211113313331333133313331212111111221121123231   >>    C3123223313331322121111331333133313331333121211111122112112323   <<    C31232233133313221211113313331333133313331212111111221121123233   >>      C31232233133313221211113313331333133313331212111111221121123232   >>