c program for fibonacci series

#include<stdio.h>
#include<conio.h>
void main()
{
 int f1=0,f2=1,f3,i,n;
 printf("enter the limit of series:");
 scanf("%d",&n);
 printf("fibnacci series:\n");
 printf("%d",f1);
 for(i=0;i<n;i++)
 {
  f3=f1+f2;
  printf("\t%d",f3);
  f1=f2;
  f2=f3;
 }
getch();
}