C1111121111331311211331333133313331333133313231333133313331333133313121132111   >>    C111112111133131121133133313331333133313331323133313331333133313331312113211   <<    C1111121111331311211331333133313331333133313231333133313331333133313121132113   >>      C1111121111331311211331333133313331333133313231333133313331333133313121132112   >>