p /...../....../....../....../....../....../...../...../
c /...../....../...../......./....../....../....../..../...../...../
daca o prajitura este mai scumpa de 2 ori decat o ciocolata inseamna ca in loc de 8 prajituri as putea cumpara
8 x 2 = 10 ciocolate
cate ciocolate as fi cumparat
10 + 10 = 20 ciocolate