diff --git a/app/zadanieDnia1.js b/app/zadanieDnia1.js
index 8c20173..a79a0f7 100644
--- a/app/zadanieDnia1.js
+++ b/app/zadanieDnia1.js
@@ -1 +1,12 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const http = require('http');
+
+const srv = http.createServer((req, res) => {
+    res.setHeader("Content-Type", "text/html; charset=utf-8");
+    res.end("<h1 style='text-align:center; color:blue;'>Hello, World from back-end!</h1>");
+});
+
+srv.listen(3000, () => {
+    console.log('Serwer uruchomiony na porcie 3000');
+});
\ No newline at end of file
diff --git a/app/zadanieDnia2.js b/app/zadanieDnia2.js
index 8c20173..fd9513d 100644
--- a/app/zadanieDnia2.js
+++ b/app/zadanieDnia2.js
@@ -1 +1,16 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const http = require('http');
+
+const srv = http.createServer((req, res) => {
+
+    res.setHeader("Content-Type", "text/html; charset=utf-8");
+    res.end(`<h1 style='text-align:center; color:blue;'>Hello, World from back-end!</h1>
+        <p><b>Preferowane języki:</b> ${req.headers['accept-language']}</p>
+        <p><b>User-agent:</b> ${req.headers['user-agent']}</p>`
+    );
+});
+
+srv.listen(3000, () => {
+    console.log('Serwer uruchomiony na porcie 3000');
+});
\ No newline at end of file