C31232233133313221211113313331333133313331212111111213331323222221   >>    C3123223313331322121111331333133313331333121211111121333132322222   <<    C31232233133313221211113313331333133313331212111111213331323222223   >>      C31232233133313221211113313331333133313331212111111213331323222222   >>