C3132121111133313233121111331333133313331333133313331333133313211311   >>    C313212111113331323312111133133313331333133313331333133313331321131   <<    C3132121111133313233121111331333133313331333133313331333133313211313   >>      C3132121111133313233121111331333133313331333133313331333133313211312   >>