C1111233131211111211113313331333133313331333133313331333133313121133131112331   >>    C111123313121111121111331333133313331333133313331333133313331312113313111233   <<    C1111233131211111211113313331333133313331333133313331333133313121133131112333   >>      C1111233131211111211113313331333133313331333133313331333133313121133131112332   >>