C13223313311212111133133313331333132313331333131333131123313231211   >>    C1322331331121211113313331333133313231333133313133313112331323121   <<    C13223313311212111133133313331333132313331333131333131123313231213   >>      C13223313311212111133133313331333132313331333131333131123313231212   >>