Răspuns :
b trebuie sa ia valorile 1,6
numerele sunt:8091,8096,8191,8196,8291,8296,8391,8396,8491,8496
8591,8596
8691,8696
8791,8796
8891,8896
8991,8996
numerele sunt:8091,8096,8191,8196,8291,8296,8391,8396,8491,8496
8591,8596
8691,8696
8791,8796
8891,8896
8991,8996