C3132121111133313233121111331333133313331333133313331333133313232213223111   >>    C313212111113331323312111133133313331333133313331333133313331323221322311   <<    C3132121111133313233121111331333133313331333133313331333133313232213223113   >>      C3132121111133313233121111331333133313331333133313331333133313232213223112   >>