using System;
using System.Globalization;
namespace ProgramConsole
{
class Program
{
static void Main(string[] args)
{
string s = "testd2006";
DateTime dt;
if(DateTime.TryParseExact(s, "yyyy", CultureInfo.InvariantCulture,
DateTimeStyles.None, out dt))
{
Console.WriteLine(dt);
}
}
}
}
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