diff --git a/Lesson_1/Task_4/Program.cs b/Lesson_1/Task_4/Program.cs
new file mode 100644
index 0000000..d1e3086
--- /dev/null
+++ b/Lesson_1/Task_4/Program.cs
@@ -0,0 +1,19 @@
+Console.Write("Enter string 1: ");
+
+string? string1 = Console.ReadLine();
+
+Console.Write("Enter string 2: ");
+
+string? string2 = Console.ReadLine();
+
+if (string1 == null || string2 == null)
+{
+}
+else if (string1.Length > string2.Length)
+	Console.WriteLine(string1 + string2);
+else if (string1.Length < string2.Length)
+{
+	string[] split = string2.Split(string1[0]);
+	foreach (string value in split)
+		Console.WriteLine(value);
+}
diff --git a/Lesson_1/Task_4/Task_4.csproj b/Lesson_1/Task_4/Task_4.csproj
new file mode 100644
index 0000000..f02677b
--- /dev/null
+++ b/Lesson_1/Task_4/Task_4.csproj
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>