Răspunsuri

2014-02-18T14:19:50+02:00
Ab
a+b=7

1-6
2-5
3-4
4-3
5-2
6-1
7-0

deci nr tale sunt
16,25, 34, 43, 52, 61, 70
2014-02-18T14:21:28+02:00