How to call the method which is having same name in abstract class and interface.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ConsoleApplication2
{
    interface MyInterface
    {
        void MyFunction();
    }

    abstract public class MyAbstractClass
    {
        abstract public void MyFunction();
    }

    public class MyClass : MyAbstractClass, MyInterface
    {
        public override void MyFunction()
        {
            Console.WriteLine("A");
        }

        void MyInterface.MyFunction()
        {
            Console.WriteLine("B");
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            MyClass mc = new MyClass();
            mc.MyFunction();

        }
    }
}