Răspuns :

Răspuns:

1276,2176,2167 ,1267, 6217 ,6271,7126 ,7162, 6172 ,6127 ,6712 ,6721 ,1726 ,1762 ,2761 ,2716 ,2167 ,2176

Mai întai le vom cauta pe cele care incep cu:

1: 1267,1276,1627,1726,1762,1672

2:2167,2176,2617,2716, 2761,2671

7:7162,7126,7612,7216, 7261,7621

6:6172, 6127,6712,6217,6271,6721