#include <stdio.h>

int main (int argc, const char * argv[]) {
    int a = 0;
	int b = 1;
	int c = 0;
	int d = 1;
	int power;
	
    printf("Please enter a number: ");
	scanf("%d", &power);
	
	printf("0");
	while (d < power) {
		c = a + b;
		a = b;
		b = c;
		printf(", %d", c);
		d++;
	}
    return 0;
}