Dictionary in C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace UsingDictionary
{
class Customer
{
public string Name { get; set; }
public int Salary { get; set; }
public string City { get; set; }
}
class Program
{
static void Main(string[] args)
{
Customer c1 = new Customer { Name = "Raci", Salary = 20000, City = "Mumbai"};
Customer c2 = new Customer { Name = "Ruchi", Salary = 204000, City = "bHOPAL" };
Dictionary<int, Customer> cust = new Dictionary<int, Customer>();
cust.Add(1, c1);
cust.Add(2, c2);

//int i;
foreach (var i in cust)
{
Console.WriteLine("Employee Code: " + i.Key);
if (cust.ContainsKey(i.Key))
{
var customercity = cust[i.Key].City;
var customername = cust[i.Key].Name;
var customersalary = cust[i.Key].Salary;
Console.WriteLine(" Name: " + customername + " City: "
+ customercity + " Salary: " + customersalary);
}
}
}