C312312111133131212111133133313231333133313331333133311212111113331333132232331   >>    C31231211113313121211113313331323133313331333133313331121211111333133313223233   <<    C312312111133131212111133133313231333133313331333133311212111113331333132232333   >>      C312312111133131212111133133313231333133313331333133311212111113331333132232332   >>