#include <iostream>

using namespace std;

int notHesapla (int vize, int final)
{
    int ort = (vize * 40/100 ) + (final * 60/100);
    return ort;
}

int main ()
{
     int viz, fin, no;
     cout << "Vize notunu giriniz : ";
     cin >> viz;
     
     cout << "Final notunu giriniz :";
     cin >> fin;
     
     no = notHesapla (viz, fin);
     cout << "Not : " << no << endl;
     
     if (no < 50)
     {
            cout << "Sonuc F\n";
     }
     
     else if (no < 60)
     {
          cout << "Sonuc D\n";
     }
     
     else if (no < 70)
     {
          cout << "Sonuc C\n";
     }
     
     else if (no < 80)
     {
          cout << "Sonuc B\n";
     }
     
     else if (no < 100)
     {
          cout << "Sonuc A\n";
     }
     
     else
     {
         cout << "Lutfen 0 - 100 arasi degerler girin.\n";
     }
     
     system ("pause");
     return 0;
}