C13223313311212111133133313331333132333132313231333131323211231   >>    C1322331331121211113313331333133313233313231323133313132321123   <<    C13223313311212111133133313331333132333132313231333131323211233   >>      C13223313311212111133133313331333132333132313231333131323211232   >>