#include <iostream>
#include "razlomak.hpp"

using namespace std;

int main() {
  Razlomak r(1);
  //r.postaviBrojilac(1);
  //r.postaviImenilac(2);
  //cout << r.vratiBrojilac() << "/" << r.vratiImenilac() << endl;
  try {
    cin >> r;
  }
  catch (const char *s) {
    cerr << s << endl;
    return 1;
  }
  cout << r << endl;

  cout << r + r<< endl;

  cout << "r = " << r << endl;
  Razlomak p = ++r;
  cout << "r = " << r << endl;
  cout << "p = " << p << endl;

  p = r++;
  cout << "r = " << r << endl;
  cout << "p = " << p << endl;

  cout << "r + 2 = " << (double)r + 2 << endl;
  //cout << "r + 2.5 = " << r + 2.5 << endl;
  
  return 0;
}