C1111121111331311211331333133313331333133313231333133313331333121133221211   >>    C111112111133131121133133313331333133313331323133313331333133312113322121   <<    C1111121111331311211331333133313331333133313231333133313331333121133221213   >>      C1111121111331311211331333133313331333133313231333133313331333121133221212   >>