#include <iostream>
#include <iomanip>
int main()
{
  float summa;

  summa = 0.0;
  for(int k = 1; k <= 1000000; k++)
    summa += 1.0f / float(k);

  cout << "1 + 1/2 + ... + 1/1000000 = " << setprecision(8) << summa << endl;

  summa = 0.0;
  for(int k = 1000000; k >= 1; k--)
    summa += 1.0f / float(k);

  cout << "1/1000000 + ... + 1/2 + 1 = " << summa << endl;

  return 0;
}