C313212111113331323312111133133313331333133313331333133313331311331313232223311   >>    C31321211111333132331211113313331333133313331333133313331333131133131323222331   <<    C313212111113331323312111133133313331333133313331333133313331311331313232223313   >>      C313212111113331323312111133133313331333133313331333133313331311331313232223312   >>