using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static T Convert<T>(int[] src)

    {

        Type genericClassType = typeof(T);

        Type[] typeParameters = genericClassType.GetGenericArguments();

        Type genericTypeDef = genericClassType.GetGenericTypeDefinition();

        Type constructedClass = genericTypeDef.MakeGenericType(typeParameters);

        T arrayLike = (T)Activator.CreateInstance(constructedClass, src);

        return arrayLike;

    }

    public static void Main()

    {

        int[] src = { 4, 5, 6 };

        Stack<int> copy = Convert<Stack<int>>(src);

        Queue<int> copy2 = Convert<Queue<int>>(src);

        List<int> copy3 = Convert<List<int>>(src);

        Console.WriteLine(string.Join(",", copy.ToArray()));

        Console.WriteLine(string.Join(",", copy2.ToArray()));

        Console.WriteLine(string.Join(",", copy3.ToArray()));

    }

}