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void fibonacci(int n)
{
  int tmp;
  int result;
  int i;
  int b;
  int a;

  i = 0;
  a = 0;
  b = 1;
  while (i <= n) {
    i = (i + 1);
    tmp = a;
    a = b;
    b = (b + tmp);
  };
  result = a;

}