class C{ // define class named "C", no parents or attributes
   println("starting construction"); // all code outside functions is wrapped into the constructor
   var v;    // instance data for this class
   fcn init(x) // initializer for this class, calls constructor
      { v = x }
   println("ending construction of ",self);
}
c1:=C(5);  // create a new instance of C
c2:=c1("hoho"); // create another instance of C
println(C.v," ",c1.v," ",c2.v);