import math

procedure main()
   write("c1: ",(c1 := Complex(1.5,3)).toString())
   write("c2: ",(c2 := Complex(1.5,1.5)).toString())
   write("+: ",(c1+c2).toString())
   write("-: ",(c1-c2).toString())
   write("*: ",(c1*c2).toString())
   write("/: ",(c1/c2).toString())
   write("additive inverse: ",c1.addInverse().toString())
   write("multiplicative inverse: ",c1.multInverse().toString())
   write("conjugate of (4,-3i): ",Complex(4,-3).conjugate().toString())
end