C312312111133131212111133133313231333133313331331121111331311213223232131131   >>    C31231211113313121211113313331323133313331333133112111133131121322323213113   <<    C312312111133131212111133133313231333133313331331121111331311213223232131133   >>      C312312111133131212111133133313231333133313331331121111331311213223232131132   >>