overloading of methods and enumerations

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace mynamespace
{
    class Class1
    {
        enum myenum
        {
            abc,ali, ashi, umar, zainab, saira
        }

        string a;
        string b;
        string c;

        public Class1()
        {

        }
        public Class1(string a1, string b1, string c1)
        {
            a = a1;
            b = b1;
            c = c1;
        }
       public string geta()
       {
           return a;
       }
       public void myname(string a2)
       {
           MessageBox.Show(a2);
       }
       public string enums()
       {
           int a = (int)myenum.ali;
           string b =a.ToString();
           return b;

       }
       public void myname(int a3)
       {
           MessageBox.Show(a3.ToString());
       }
    }
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using mynamespace;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            Class1 a = new Class1();
            a.myname("ali");
            a.myname(9);
            MessageBox.Show(a.enums());



        }

    }
}