a = 1
b = 19
1 × 1 + 19 = 20
a = 2
b =16
2 × 2 + 16 = 20
a = 3
b = 11
3 × 3 + 11 = 20
a = 4
b = 4
4 × 4 + 4 = 20
sper ca te-am ajutat
