C111123313121111121111331333133313331333133313331333133313231313232221   >>    C11112331312111112111133133313331333133313331333133313331323131323222   <<    C111123313121111121111331333133313331333133313331333133313231313232223   >>      C111123313121111121111331333133313331333133313331333133313231313232222   >>