C31231211111133131211113313331333133112111133232133313231323223312331   >>    C3123121111113313121111331333133313311211113323213331323132322331233   <<    C31231211111133131211113313331333133112111133232133313231323223312333   >>      C31231211111133131211113313331333133112111133232133313231323223312332   >>