class Object
  int fibonaccir( int n )
    if_plus( n - 1 )
      int tmp
      tmp = n - 1
      int a = fibonaccir( tmp )
      tmp = n - 2
      int b = fibonaccir( tmp )
      return a + b
    else
      return n
    end
  end
  int fib_print(int n)
    int fib = fibonaccir( n )
    fib.putint()
    return fib
  end
  int main()
    return fib_print(7)
  end
end