using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<int> t = new List<int>(){1,3,7,15,47,61,62,70,101};

        var b = t.OrderBy(val => 50 - val).First();

        Console.WriteLine(b.ToString());

    }

}