citeste F,B,n
scrie (3*F+2*B)*n
#include <iostream>
using namespace std;
int main(){
int F,B,n;
cout << "Introduceti nr fete :", cin >> F;
cout << "Introduceti nr baieti :", cin >> B;
cout << "Introduceti nr zile :", cin >> n;
cout << "Numar pagini citite : " << n*(3*F+2*B);
}