diff --git a/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Dima.csproj b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Dima.csproj
new file mode 100644
index 0000000..ed9781c
--- /dev/null
+++ b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Dima.csproj	
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Program.cs b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Program.cs
new file mode 100644
index 0000000..6c6fe8f
--- /dev/null
+++ b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/Program.cs	
@@ -0,0 +1,37 @@
+namespace Lab1;
+class Program{
+    static void Main(string[] args){
+        string filePath = "input.txt";
+        string originalText = ReadFromFile(filePath);
+        Console.WriteLine("=== Исходный текст из файла ===");
+        Console.WriteLine(originalText);
+        Console.WriteLine("\n=== Обработанный текст ===");
+        Console.WriteLine(ProcessText(originalText));
+    }
+    static string ProcessText(string text)  
+    {  
+        var resultBuilder = new System.Text.StringBuilder();  
+        for (int i = 0; i < text.Length - 1; i++)  
+        {  
+            if (text[i] == ' ' && text[i + 1] == '-')  
+            {  
+                int startIndex = i;  
+                int endIndex = i;  
+                while (endIndex < text.Length && text[endIndex] != '.' && text[endIndex] != '!' && text[endIndex] != '?')  
+                {  
+                    endIndex++;  
+                }  
+
+                resultBuilder.Append(text, startIndex, endIndex - startIndex);  
+                i = endIndex - 1;
+            }  
+        }  
+        return " " + resultBuilder.ToString();  
+    }  
+        
+
+    static string ReadFromFile(string filepath)
+    {
+        return File.ReadAllText(filepath);  
+    }
+}
\ No newline at end of file
diff --git a/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/input.txt b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/input.txt
new file mode 100644
index 0000000..a981168
--- /dev/null
+++ b/Files/2-nd course/4-th semester/Object-oriented programming/Laboratory work/Lab #1/Dima/input.txt	
@@ -0,0 +1,4 @@
+fasfdasf - asfsaasfafsfsa.
+asfasfasf - asfasfafsfsa.
+afsrehgre fwef ewfwefwef.
+fewefwe - wef wef wef.
\ No newline at end of file