#include <stdio.h>
#include <math.h>

#define EULER 0.5772156649
int main()
{
  double H;
  int n, k;
  
  scanf("%d", &n);
  
  H = 0;
  for (k = 1; k <= n; k++)
    H += (double)1/k;
  
  printf("H_%d= %.10e\n", n, H);
  printf("H_%d - log %d) = %.10e\n", n, n, H-log(n));
  printf("H_%d - log %d - gamma) = %.10e\n", n, n, H-log(n)-EULER);
  return 0;
}