C312312111111331312111133133313331333133313232233133313331333133313223313333131   >>    C31231211111133131211113313331333133313331323223313331333133313331322331333313   <<    C312312111111331312111133133313331333133313232233133313331333133313223313333133   >>      C312312111111331312111133133313331333133313232233133313331333133313223313333132   >>