C111123313121111121111331333133313331333133313331333133312111133232221   >>    C11112331312111112111133133313331333133313331333133313331211113323222   <<    C111123313121111121111331333133313331333133313331333133312111133232223   >>      C111123313121111121111331333133313331333133313331333133312111133232222   >>