C Program To Print Fibonacci Series

/*C Program To Print Fibonacci Series */

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int f1=1,f2=1,f3,i=1,n,sum=0;
    printf("Enter the value:\n");
        scanf("%d",&n);
    printf("----------------\n");
     do{
        printf("%d\n",f1);
        sum=sum+f1;
        f3=f2+f1;
        f1=f2;
        f2=f3;
        i++;
     }while(i<=n);
      printf("Sum Of The Series = %d\n",sum);
    return 0;
}

Out Put:

Enter the value:
6
----------------
1
1
2
3
5
8
Sum Of The Series = 20