C312312111133131212111133131133133313331323223313112211232333131   >>    C31231211113313121211113313113313331333132322331311221123233313   <<    C312312111133131212111133131133133313331323223313112211232333133   >>      C312312111133131212111133131133133313331323223313112211232333132   >>