C31232233133313221211113313331311331333133313331311331322313231   >>    C3123223313331322121111331333131133133313331333131133132231323   <<    C31232233133313221211113313331311331333133313331311331322313233   >>      C31232233133313221211113313331311331333133313331311331322313232   >>