using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        //Console.WriteLine(GetLowestValue(null));

        //Console.WriteLine(GetLowestValue(new List<int>(){}));

        Console.WriteLine(GetLowestValue(new List<int>(){1}));

        Console.WriteLine(GetLowestValue(new List<int>(){5,3,0,8,1,10}));

    }

    public static int GetLowestValue(List<int> inputValues)

    {

        if(inputValues == null || inputValues.Count == 0)

        {

            // the method's signature doesn't have a default value so we throw an error

            throw new System.ArgumentException("Value can't be null or empty");

        }

        inputValues.Sort();

        return inputValues[0];

    }

}