#include <iostream>
using namespace std;
 
main ()
{
    int odabir, a,b,s,p;
     cout<<"Vas odabir "<<endl;
     cin>>odabir;
     if (odabir == 1)
	 {
	 cout<<"Unesite variablu a "<<endl;
     cin>>a;
     cout<<"Unesite variablu b "<<endl;
     cin>>b;
     s=a+b;
     cout<<"Suma"<<"___"<<s<<endl;
     }
  
     else
     {
    cout<<"Unesite variablu a "<<endl;
     cin>>a;
     cout<<"Unesite variablu b "<<endl;
     cin>>b;
     p=a*b;
     cout<<"Produkt"<<"___"<<p<<endl;
  }
     return 0;
     }