int Rabbit(int N)
// ---------------------------------------------------
// Computes a term in the Fibonacci sequence.
// Precondition: N is a positive integer.
// Postcondition: Returns the Nth Fibonacci number.
// ---------------------------------------------------
{
   if (N <= 2)
      return 1;

   else  // N > 2, so N-1 > 0 and N-2 > 0
      return Rabbit(N-1) + Rabbit(N-2);
}  // end Rabbit