Data commit

Task/Long-year/C-sharp/long-year.cs

@@ -0,0 +1,18 @@
+using static System.Console;
+using System.Collections.Generic;
+using System.Linq;
+using System.Globalization;
+
+public static class Program
+{
+    public static void Main()
+    {
+        WriteLine("Long years in the 21st century:");
+        WriteLine(string.Join(" ", 2000.To(2100).Where(y => ISOWeek.GetWeeksInYear(y) == 53)));
+    }
+
+    public static IEnumerable<int> To(this int start, int end) {
+        for (int i = start; i < end; i++) yield return i;
+    }
+
+}