C13223313311212111133133313331333132313331323312111133132213331231123121   >>    C1322331331121211113313331333133313231333132331211113313221333123112312   <<    C13223313311212111133133313331333132313331323312111133132213331231123123   >>      C13223313311212111133133313331333132313331323312111133132213331231123122   >>