C1111121111331311211331333133313331333133313221211113313331333133313121232331   >>    C111112111133131121133133313331333133313331322121111331333133313331312123233   <<    C1111121111331311211331333133313331333133313221211113313331333133313121232333   >>      C1111121111331311211331333133313331333133313221211113313331333133313121232332   >>