class Parent{

public int stuff() {

return 1;

}

}

class ChildOne extends Parent {

@Override

public int stuff() {

return 2;

}

}

class ChildTwo extends Parent {

@Override

public int stuff() {

return 3;

}

}

class MainClass {

public static void Main (string[] args) {

Parent var1=new Parent();

ChildOne var2=new ChildOne();

ChildTwo var3=new ChildTwo();

Parent var4=new ChildOne();

Parent var5=new ChildTwo();

int sum=var1.stuff() + var2.stuff() + var3.stuff() + var4.stuff() + var5.stuff();

System.out.println ("Sum is "+sum);

}

}

What is the output of the following code