begin
  var a := Cplx(1,2);
  var b := Cplx(3,4);
  Println(a + b);
  Println(a - b);
  Println(a * b);
  Println(a / b);
  Println(-a);
  Println(1/a);
  Println(a.Real,a.Imaginary);
  Println(a.Conjugate);
  Println(Abs(a));
  Println(a ** b);
end.