descompunem in baza 10:
abcd=1000a+100b+10c+d
dabc=1000d+100a+10b+c
cadb=1000c+100a+10d+b
1000a+100b+10c+d+1000d+100a+10b+c+1000c+100a+10d+b=1200a+111b+1011c+1011d=7599. Dai valori fiecarui nr. Daca ar fi ...., celelalte ar fi asa. Daca ar fi asa ar fi asa. Cauti pana gasesti varianta corecta (intotdeauna ia valorile cele mai mari, apoi coboara cum e cazul). Intelegi?
