#include <stdio.h>

int main () {
  int n,
    i;	      /* indice do i-esimo termo da seq  */
  float Hi;  /* H_i = H_{i-1} + 1/i */
  float Hir;  /* H_i = H_{i-1} + 1/i */

  scanf ( "%d", &n );
  Hir = Hi = 0.0;

  for ( i=1; i<=n; i++ )
    Hi = Hi + (double) 1 / i;
  for ( i=n; i>=1; i-- )
    Hir = Hir + (double) 1 / i;

  printf ( "%.16g\n%.16g\n", Hi, Hir );

  return 0;
}