theme changed

labs/lab9/MyClass/Operation.cs

@@ -0,0 +1,14 @@
+using System;
+
+class Operation
+{
+    public static void PrintTitle(Book b)
+    {
+        b.Show();
+    }
+
+    public static void MetodObrabotchik(Book b)
+    {
+        Console.WriteLine("Книга {0} сдана в срок.", b.ToString());
+    }
+}