C13223313311212111133133313331333133313232233133313331333222122321111   >>    C1322331331121211113313331333133313331323223313331333133322212232111   <<    C13223313311212111133133313331333133313232233133313331333222122321113   >>      C13223313311212111133133313331333133313232233133313331333222122321112   >>