7:     #include <iostream.h>
 8:
 9:     int fib(int n);
 10:
 11:    int main()
 12:    {
 13:
 14:      int n, answer;
 15:      cout << "Enter number to find: ";
 16:      cin >> n;
 17:
 18:      cout << "\n\n";
 19:
 20:      answer = fib(n);
 21:
 22:      cout << answer << " is the " << n << "th Fibonacci number\n";
 23:         return 0;
 24:    }
 25:
 26:    int fib (int n)
 27:    {
 28:      cout << "Processing fib(" << n << ")... ";
 29:
 30:      if (n < 3 )
 31:      {
 32:         cout << "Return 1!\n";
 33:         return (1);
 34:      }
 35:      else
 36:      {
 37:        cout << "Call fib(" << n-2 << ") and fib(" << n-1 << ").\n";
 38:        return( fib(n-2) + fib(n-1));
 39:      } 
 40: }