C1111121111331311211331333133313331333133313231333133313331311331333112223311   >>    C111112111133131121133133313331333133313331323133313331333131133133311222331   <<    C1111121111331311211331333133313331333133313231333133313331311331333112223313   >>      C1111121111331311211331333133313331333133313231333133313331311331333112223312   >>