void main () {
   float n, fib0, fib1;
   float temp, result;
   n = 8;
   fib0 = 0;
   fib1 = 1;
   while (n > 0) {
      temp = fib0;
      fib0 = fib1;
      fib1 = fib0 + temp;
      n = n - 1;
   }
   result = fib0;
}