static int Main()
{
sprint.print();
var x = new writer();
var y = new writer();
x.print();
y.print();
y.s = "new string\n";
y.print();
var z = new swriter();
z.s = "hello from swriter\n";
z.print();
return(0);
}
static int Main()
{
sprint.print();
var y = new writer();
var x = y;
y.s = "new string\n";
x.print();
y.print();
return(0);
}