C111123313121111121111331333133313331331121111133313331333133313231333131112331   >>    C11112331312111112111133133313331333133112111113331333133313331323133313111233   <<    C111123313121111121111331333133313331331121111133313331333133313231333131112333   >>      C111123313121111121111331333133313331331121111133313331333133313231333131112332   >>