C111123313121111121111331333133313113313232123313331333133311211113211331   >>    C11112331312111112111133133313331311331323212331333133313331121111321133   <<    C111123313121111121111331333133313113313232123313331333133311211113211333   >>      C111123313121111121111331333133313113313232123313331333133311211113211332   >>