#include <iostream>
#include <cstdlib>
using namespace std;
int main() 
{
    string Korisnicko_ime;
    string password;
    string correctKorisnicko_ime = "Petko";
    string correctPassword = "Petkoski";
    cout << "Vnesi korisnickoime: ";
    cin >> Korisnicko_ime;
    cout << "Vnesi password ";
    cin >> password;
    if (Korisnicko_ime == correctKorisnicko_ime && password == correctPassword) 
        cout << "Dobredoje " << Korisnicko_ime << "!" << endl;
     else 
        cout << "Obidi se povtorno" << endl;
        system ("PAUSE");
	return 0;
}

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UGV0a28gClBldGtvc2tp

Petko 
Petkoski