#include <stdio.h>

double fib(double);
double fibi(double);

int main() {
  for (double x = 1; x < 20; x++)
    printf("%g, ", fib(x));
  printf("\n");

  for (double x = 1; x < 20; x++)
    printf("%g, ", fibi(x));
  printf("\n");
  return 0;
}