#include <stdio.h>
int main(void) {
int i;
const int numFibs = 20;
unsigned long long int Fibonacci[numFibs];
Fibonacci[0] = 0; // by definition
Fibonacci[1] = 1; // by definition
for (i = 2; i < numFibs; ++i)
Fibonacci[i] = Fibonacci[i - 2] + Fibonacci[i - 1];
for (i = 0; i < numFibs; ++i)
printf(%llu , Fibonacci[i]);
printf(\n);
return 0;
}