C111113331333132322331333133313331333132332313311211113313331121211223311   >>    C11111333133313232233133313331333133313233231331121111331333112121122331   <<    C111113331333132322331333133313331333132332313311211113313331121211223313   >>      C111113331333132322331333133313331333132332313311211113313331121211223312   >>