diff --git a/WebApplicationStart/Controllers/CalcController.cs b/WebApplicationStart/Controllers/CalcController.cs
new file mode 100644
index 0000000..807350d
--- /dev/null
+++ b/WebApplicationStart/Controllers/CalcController.cs
@@ -0,0 +1,23 @@
+using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
+using WebApplicationStart.Models;
+
+namespace WebApplicationStart.Controllers
+{
+    public class CalcController : Controller
+    {
+        private readonly ILogger<HomeController> _logger;
+
+		public string Index(int a = 0, int b = 0, string c = "+")
+		{
+			switch (c)
+			{
+				case "+": return $"{a} + {b} = {a + b}";
+				case "-": return $"{a} - {b} = {a - b}";
+				case "*": return $"{a} * {b} = {a * b}";
+				case "/": if (b != 0) return $"{a} / {b} = {(double)a / b}"; else return "На 0 делить нельзя";
+			}
+			return "введите корректные данные";
+		}
+	}
+}
\ No newline at end of file
diff --git a/WebApplicationStart/Program.cs b/WebApplicationStart/Program.cs
index 3155fc3..fb82442 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}/{a?}/{b?}/{c?}");
 
 app.Run();
diff --git a/WebApplicationStart/Views/Home/Index.cshtml b/WebApplicationStart/Views/Home/Index.cshtml
index 28d6e5f..b552742 100644
--- a/WebApplicationStart/Views/Home/Index.cshtml
+++ b/WebApplicationStart/Views/Home/Index.cshtml
@@ -3,7 +3,7 @@
 }
 
 <div class="text-center">
-    <h1 class="display-4">Тут надо написать свою Фамилию и Имя</h1>
+    <h1 class="display-4">Кокоева Элина</h1>
     <p>Я учу ASP и это мой первый крутой проект.</p>
     <div>
         <img class="img-fluid"  src="images/startdevelopweb.png"> </img>
diff --git a/WebApplicationStart/Views/Home/Tasks.cshtml b/WebApplicationStart/Views/Home/Tasks.cshtml
index a167f22..cd6daec 100644
--- a/WebApplicationStart/Views/Home/Tasks.cshtml
+++ b/WebApplicationStart/Views/Home/Tasks.cshtml
@@ -5,10 +5,10 @@
 
 <p>
     <ul>
-        <li> Задача 1. <a href="task1">Время суток</a></li>
+        <li> Задача 1. Время суток</li>
         <li>Задача 2. Калькулятор</li>
         <li>Задача 3. Калькулятор с операцией</li>
-        <li>Задача 4. Калькулятор с операцией и query параметрами</li>
+        <li>Задача 4. <a href="/Calc/Index">Калькулятор с операцией и query параметрами</a></li>
     </ul>
     
     тут добавлю дедлайн