C31231211111133131211113313331333132333133313121211113313231323223311211   >>    C3123121111113313121111331333133313233313331312121111331323132322331121   <<    C31231211111133131211113313331333132333133313121211113313231323223311213   >>      C31231211111133131211113313331333132333133313121211113313231323223311212   >>