C13223313311212111133133313331333133313232233133313331333132212111   >>    C1322331331121211113313331333133313331323223313331333133313221211   <<    C13223313311212111133133313331333133313232233133313331333132212113   >>      C13223313311212111133133313331333133313232233133313331333132212112   >>