using MySystem.MySubSystem;

internal class Program
{
    private static void Main(string[] args)
    {
        Class1 cls = new MySystem.MySubSystem.Class1();
    }
}

namespace MySystem.MySubSystem
{
    public class Class1
    {
        public int Calculate(int a, int b)
        {
            int abs_Sum = System.Math.Abs(a) + Math.Abs(b);
            return abs_Sum;
        }
    }
}