class SimpleCalculator
{
int add(int a, int b)
{
return a+b;
}
int add(int a, int b, int c)
{
return a+b+c;
}
}
public class Demo
{
public static void main(String args[])
{
SimpleCalculator obj = new SimpleCalculator();
System.out.println(obj.add(10, 20));
System.out.println(obj.add(10, 20, 30));
}
}