#include <stdio.h>

void printReal(REAL x) {
  if (sizeof(REAL) == sizeof(double))
    printf("%22.16e",x);
  else 
    printf("%15.9e",x);
}

int main() {
  REAL m=1.0, s=0.0, mf=1.0;
  int n=1;

  while (s+mf != s) {   
    s += mf; m *= (REAL) n; mf = 1.0/m; 
    printf("%d ",n); printReal(s); printf("\n");
    n++;
  }  
}