Emisija

/* http://www.hsin.hr/skolska2007/zadaci/bas_pas/druga/zadaci.pdf */
#include <iostream>
using namespace std;
main()
{
      int h, m, t;
      cin >> h >> m >> t;

      int p = m + t;

      while (p>59)
      {
            h = h + 1;
            p = p - 60;
      }

      cout << h << ":" << p << endl;

      system ("PAUSE");
}