using System;

using System.Linq;

using System.Collections;

public class Program

{

    public static void Main()

    {

        var arr = new int[]{1,2,3};

        var total = arr.Aggregate((acc, x) => acc *= x);

        var result = arr.Select((x,y)=> total / x);

        // Just to show

        foreach (var item in result){

            Console.WriteLine(item);

        }

    }

}