C3213322333133313113313221211113313331333132313231333131212132333222121   >>    C321332233313331311331322121111331333133313231323133313121213233322212   <<    C3213322333133313113313221211113313331333132313231333131212132333222123   >>      C3213322333133313113313221211113313331333132313231333131212132333222122   >>