D1212132333132233131312323131323132322331323133313113313232111121   >>    D121213233313223313131232313132313232233132313331311331323211112   <<    D1212132333132233131312323131323132322331323133313113313232111123   >>      D1212132333132233131312323131323132322331323133313113313232111122   >>