using System;
using System.Collections.Generic;
using System.Linq;
public class Test
{
public static void Main()
{
var numbs4 = new List<dynamic>() { 12, 9, 75,75, 23, 12, 33, 34, 54, 21, 22 };
var result = numbs4
.GroupBy(x =>x)
.OrderByDescending(g => g.Key)
.First() // That's the first group
.ToList();
foreach (var i in result) {
Console.WriteLine(i);
}
}
}
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