diff --git a/WebApplicationStart/Controllers/CalculatorController.cs b/WebApplicationStart/Controllers/CalculatorController.cs
new file mode 100644
index 0000000..155b22d
--- /dev/null
+++ b/WebApplicationStart/Controllers/CalculatorController.cs
@@ -0,0 +1,28 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace WebApplicationStart.Controllers
+{
+    public class CalculatorController : Controller
+    {
+        public string Index(double num1=0, double num2 = 0, string operation="+")
+        {
+            switch (operation)
+            {
+                case "+":
+                    return $"{num1} + {num2} = {num1 + num2}";
+                case "-":
+                    return $"{num1} - {num2} = {num1 - num2}";
+                case "*":
+                    return $"{num1} * {num2} = {num1 * num2}";
+                case "/":
+                    if (num2 == 0)
+                    {
+                        Console.WriteLine("Ошибка: деление на ноль!");
+                    }
+                    return $"{num1} / {num2} = {num1 / num2}";
+                default:
+                    return "Ошибка: неверный оператор!";
+            }
+        }
+    }
+}
diff --git a/WebApplicationStart/Program.cs b/WebApplicationStart/Program.cs
index 3155fc3..d1eea4e 100644
--- a/WebApplicationStart/Program.cs
+++ b/WebApplicationStart/Program.cs
@@ -18,6 +18,6 @@
 
 app.MapControllerRoute(
     name: "default",
-    pattern: "{controller=Home}/{action=Index}/{id?}");
+    pattern: "{controller=Home}/{action=Index}/{num1?}/{num2?}/{operation?}");
 
 app.Run();