#include <iostream>
#include <iomanip>

int main()
{
   int minutes;
   float billamount;
   std::cout << "Enter the number of minutes: ";
   std::cout << std::setiosflags(std::ios::showpoint | std::ios::fixed);
   std::cout << std::setprecision(2);
   std::cin >> minutes;
   billamount = 25 + 2 * minutes / 60.0;
   std::cout << minutes << " minutes, bill = " << billamount << std::endl;
   return 0;
}