diff --git a/Start.cs b/Start.cs
index 0d996d8..c0faa5f 100644
--- a/Start.cs
+++ b/Start.cs
@@ -97,7 +97,23 @@ public class Start
                 Console.WriteLine("Resault is:");
                 pract.Quad(number);
                 break;
-
+            case 5:
+                Console.WriteLine("Input number");
+                int number1 = Convert.ToInt32(Console.ReadLine());
+                Console.WriteLine("Resault is:" + pract.countNumber(number1));
+                break;
+            case 6:
+                Console.WriteLine("Input number");
+                int number2 = Convert.ToInt32(Console.ReadLine());
+                Console.WriteLine("Resault is:" + pract.factNumber(number2));
+                break;
+            case 7:
+                Console.WriteLine("Input first number");
+                int A = Convert.ToInt32(Console.ReadLine());
+                Console.WriteLine("Input second number");
+                int B = Convert.ToInt32(Console.ReadLine());
+                Console.WriteLine("Step: " + pract.stepNum(A, B));
+                break;
 
             default:
                 Console.WriteLine("Wrong task");
diff --git a/bin/Debug/net6.0/programming_GB.dll b/bin/Debug/net6.0/programming_GB.dll
index 2fafd38..3f69fbc 100644
Binary files a/bin/Debug/net6.0/programming_GB.dll and b/bin/Debug/net6.0/programming_GB.dll differ
diff --git a/bin/Debug/net6.0/programming_GB.pdb b/bin/Debug/net6.0/programming_GB.pdb
index 2b9c75b..630f6fd 100644
Binary files a/bin/Debug/net6.0/programming_GB.pdb and b/bin/Debug/net6.0/programming_GB.pdb differ
diff --git a/obj/Debug/net6.0/programming_GB.dll b/obj/Debug/net6.0/programming_GB.dll
index 2fafd38..3f69fbc 100644
Binary files a/obj/Debug/net6.0/programming_GB.dll and b/obj/Debug/net6.0/programming_GB.dll differ
diff --git a/obj/Debug/net6.0/programming_GB.pdb b/obj/Debug/net6.0/programming_GB.pdb
index 2b9c75b..630f6fd 100644
Binary files a/obj/Debug/net6.0/programming_GB.pdb and b/obj/Debug/net6.0/programming_GB.pdb differ
diff --git a/obj/Debug/net6.0/ref/programming_GB.dll b/obj/Debug/net6.0/ref/programming_GB.dll
index 618ff70..0394838 100644
Binary files a/obj/Debug/net6.0/ref/programming_GB.dll and b/obj/Debug/net6.0/ref/programming_GB.dll differ
diff --git a/obj/Debug/net6.0/refint/programming_GB.dll b/obj/Debug/net6.0/refint/programming_GB.dll
index 618ff70..0394838 100644
Binary files a/obj/Debug/net6.0/refint/programming_GB.dll and b/obj/Debug/net6.0/refint/programming_GB.dll differ