C1212132133313223313133313113313121111331311331311331311331323121121   >>    C121213213331322331313331311331312111133131133131133131133132312112   <<    C1212132133313223313133313113313121111331311331311331311331323121123   >>      C1212132133313223313133313113313121111331311331311331311331323121122   >>