C13223313311212111133133313331333132333132322331323132313112211211   >>    C1322331331121211113313331333133313233313232233132313231311221121   <<    C13223313311212111133133313331333132333132322331323132313112211213   >>      C13223313311212111133133313331333132333132322331323132313112211212   >>