using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

​

    public static void Main()

    {

        Func<IList<string>, IEnumerable<string>>f=

            t=>t[0].Select((_,i)=>t.Aggregate("",(a,b)=>a+b[i]));

​

        foreach(var item in f(new[]{"car", "dog", "man", "yay"}))

            Console.Write(item +" ");

        Console.WriteLine();

        foreach(var item in f(new[]{"money", "taken", "trust"}))

            Console.Write(item+" ");

    }

}