C111123313121111121111331333133313331333133313331333133313331333223233111   >>    C11112331312111112111133133313331333133313331333133313331333133322323311   <<    C111123313121111121111331333133313331333133313331333133313331333223233113   >>      C111123313121111121111331333133313331333133313331333133313331333223233112   >>