C3132121111133313233121111331333133313331333133313331333133313223313113313121   >>    C313212111113331323312111133133313331333133313331333133313331322331311331312   <<    C3132121111133313233121111331333133313331333133313331333133313223313113313123   >>      C3132121111133313233121111331333133313331333133313331333133313223313113313122   >>