C31232233133313221211113313331333133313331212111113331311312221   >>    C3123223313331322121111331333133313331333121211111333131131222   <<    C31232233133313221211113313331333133313331212111113331311312223   >>      C31232233133313221211113313331333133313331212111113331311312222   >>