Finding Fibonacci number

# include<stdio.h>
void fibonacci(long);
int main()
{
long N;
scanf("%ld",&N);
fibonacci(N);
return 0;
}
void fibonacci(long N)
{
long i,f0=0,f1=1,f;
for(i=1;i<=N;i++)
{
f=f0+f1;
f1=f0;
f0=f;
printf("%3d",f);
}
}