diff --git a/README.md b/README.md
index a8687f1..f4ea443 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,41 @@
 # java
+package step4;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class Task {
+	
+	public void task() throws IOException{
+		/********* Begin *********/
+		FileReader fr = new FileReader("src/step4/input/input.txt");
+		FileWriter fw = new FileWriter("src/step4/output/output.txt");
+		int len = 0;
+		char[] cbuf = new char[1024];
+		while ((len = fr.read(cbuf))!=-1) 
+		{
+			fw.write(cbuf,0,len);
+		}
+		fr.close();
+		fw.flush();
+		fw.close();
+		
+		FileInputStream fs = new FileInputStream("src/step4/input/input.jpg");
+		FileOutputStream fos = new FileOutputStream("src/step4/output/output.jpg");
+		int le = 0;
+		byte[] bt = new byte[1024];
+		while ((le = fs.read(bt))!=-1)
+		{
+			fos.write (bt,0,le);
+		}
+		fs.close();
+		fos.flush();
+		fos.close();	
+		/********* End *********/		
+	}
+}