C3132121111133313233121111331333133313331333133313331333133313223313232333121   >>    C313212111113331323312111133133313331333133313331333133313331322331323233312   <<    C3132121111133313233121111331333133313331333133313331333133313223313232333123   >>      C3132121111133313233121111331333133313331333133313331333133313223313232333122   >>