using System;

using System.Linq;

using System.Xml;                   

using System.Xml.Linq;

using System.Collections; 

using System.Collections.Generic;

using System.Data;

using System.Data.DataSetExtensions;

using System.Data.Linq;

using System.Text;

using System.Text.RegularExpressions;

using System.Xml.Serialization; 

using System.IO;

using System.Globalization;

using System.Diagnostics;

public class Program

{

    public static void Main()

    {

        var names = new [] { "John", "Alex", "Peter", "Eric" };

        var letters = new [] { "A", "B", "C", "D" };

        int index =0;   

        var results = letters.SelectMany(x => names, (x, y) => new {x, y, idx = index++})

            .GroupBy(x=>x.idx/names.Length)

            .Select(x=> x.ToDictionary(s=>s.y, s=> s.x))

            .ToList();

        foreach(var result in results)

        {

            result.Dump();

        }   

    }

}