text: #include <stdio.h>
  
  int fib(int n)
  {
    if (n <= 1)
      return n;
  
    return fib(n - 1) + fib(n - 2);
  }
  
  int main()
  {
    int r = fib(5);
    printf("Fibonacci of 5: %d \n", r);
  
    r = fib(6);
    printf("Fibonacci of 6: %d \n", r);
  
    r = fib(7);
    printf("Fibonacci of 7: %d \n", r);
  }