Programming in C - Fibonacci Series

#include <stdio.h>
#include <conio.h>
void main()
{
    int a = 0, b = 1, fib, num, count = 0;

    printf("Enter the value of num \n");
    scanf("%d", &num);
    printf("First %d FIBONACCI numbers are ...\n", num);
    printf("%d\n", a);
    printf("%d\n", b);
    count = 2;
    while (count < num)
    {
        fib = a + b;
        count++;
        printf("%d\n", fib);
        a = b;
        b = fib;
   }
}