C111123313121111121111331333133313331333133313331333133313331322231312131   >>    C11112331312111112111133133313331333133313331333133313331333132223131213   <<    C111123313121111121111331333133313331333133313331333133313331322231312133   >>      C111123313121111121111331333133313331333133313331333133313331322231312132   >>