C13332313311211113313331333133313331323321333133313113313331323133313232213121   >>    C1333231331121111331333133313331333132332133313331311331333132313331323221312   <<    C13332313311211113313331333133313331323321333133313113313331323133313232213123   >>      C13332313311211113313331333133313331323321333133313113313331323133313232213122   >>