#include <iostream.h>

int main()
{
  cout << "15.0 plus 2.0 equals "       << (15.0 + 2.0) << '\n'
       << "15.0 minus 2.0 equals "      << (15.0 - 2.0) << '\n'
       << "15.0 times 2.0 equals "      << (15.0 * 2.0) << '\n'
       << "15.0 divided by 2.0 equals " << (15.0 / 2.0) << '\n';

  return 0;
}