C111123313121111121111331333133313331333133313331333133313331323212233311   >>    C11112331312111112111133133313331333133313331333133313331333132321223331   <<    C111123313121111121111331333133313331333133313331333133313331323212233313   >>      C111123313121111121111331333133313331333133313331333133313331323212233312   >>