C312312111111331312111133133313331322331333133313331323331323132313232231   >>    C31231211111133131211113313331333132233133313331333132333132313231323223   <<    C312312111111331312111133133313331322331333133313331323331323132313232233   >>      C312312111111331312111133133313331322331333133313331323331323132313232232   >>