C312312111133131121333133313113313331333133313331333133112111113331323321311   >>    C31231211113313112133313331311331333133313331333133313311211111333132332131   <<    C312312111133131121333133313113313331333133313331333133112111113331323321313   >>      C312312111133131121333133313113313331333133313331333133112111113331323321312   >>