using System.Collections.Generic;
var dayDict = new Dictionary<string, string>();
for(var i = 0; i < 10; ++i)
dayDict.Add("A-" + i, new DateTime().Day.ToString());
dayDict.Add("j-" + i, "IAMValue-" );
Console.WriteLine("Hello World");
foreach(KeyValuePair<string,string> kv in dayDict)
Console.WriteLine(kv.Value + "with key " + kv.Key);