diff --git a/HomeWork.cs b/HomeWork.cs
index 4139c76..ce49999 100644
--- a/HomeWork.cs
+++ b/HomeWork.cs
@@ -121,6 +121,37 @@
             }
         }
 
+        public int Task_27(int number)
+        {
+            if (number == 0)
+                return 0;
+            else
+                return number % 10 + Task_27(number / 10);
+        }
+
+        public void Task_29(int size)
+        {
+            int[] array = new int[size];
+            
+           for (int i = 0; i < array.Length; i++)
+            {
+                Console.WriteLine($"Input {i} number to array");
+                int number = Convert.ToInt32(Console.ReadLine());
+                array[i] = number;
+            }
+
+            /// Ввод рандомных элементов массива 
+/*            Random myRandom = new Random();
+ 
+            for (int i = 0; i < array.Length; i++)
+            {
+                array[i] = myRandom.Next(0, 100000); /// чтобы цифры были не over99999 
+             //   Console.Write("{0} ", array[i]);
+            }*/
+
+            Console.WriteLine("Array is: " + "[{0}]", string.Join(", ", array));
+        }
+
 
 
     }
diff --git a/README.md b/README.md
index 87446bf..000c14c 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,8 @@
 ## HW3
 - [X] Task_19
 - [X] Task_23
+
+
+## HW4
+- [X] Task_27
+- [X] Task_29
diff --git a/Start.cs b/Start.cs
index 6793b97..cb3cae5 100644
--- a/Start.cs
+++ b/Start.cs
@@ -74,6 +74,15 @@ public class Start
                 PrintNumberConsole();
                 HW.Task_23(ReadIntNumber());
                 break;
+            case 27:
+                PrintNumberConsole();
+                Console.WriteLine("Resault is: " + HW.Task_27(ReadIntNumber()));
+                break;
+            case 29:
+                Console.WriteLine("Length for array: ");
+                HW.Task_29(ReadIntNumber());
+                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 465d473..e4d21e1 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 1d51378..bef17dd 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 465d473..e4d21e1 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 1d51378..bef17dd 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 80734f1..d684cd3 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 80734f1..d684cd3 100644
Binary files a/obj/Debug/net6.0/refint/programming_GB.dll and b/obj/Debug/net6.0/refint/programming_GB.dll differ