diff --git a/app/zadanieDnia1.js b/app/zadanieDnia1.js
index 8c20173..cedd096 100644
--- a/app/zadanieDnia1.js
+++ b/app/zadanieDnia1.js
@@ -1 +1,10 @@
-//Twój kod
\ No newline at end of file
+const http = require('http');
+
+const srv = http.createServer((req, res) => {
+  res.setHeader("Content-Type", "text/html; charset=utf-8");
+  res.end("Hello, World from back-end!");
+});
+
+srv.listen(3000, () => {
+  console.log('Serwer uruchomiony na porcie 3000');
+});
diff --git a/app/zadanieDnia2.js b/app/zadanieDnia2.js
index 8c20173..b4f2124 100644
--- a/app/zadanieDnia2.js
+++ b/app/zadanieDnia2.js
@@ -1 +1,14 @@
-//Twój kod
\ No newline at end of file
+const http = require('http');
+
+const srv = http.createServer((req, res) => {
+  res.setHeader("Content-Type", "text/html; charset=utf-8");
+  res.end(`<ul>
+    <li>Preferowane języki: ${req.headers['accept-language']}</li>
+    <li>User-agent: ${req.headers['user-agent']}</li>
+    <li>Accept: ${req.headers['accept']}</li>
+  </ul>`);
+});
+
+srv.listen(3000, () => {
+  console.log('Serwer uruchomiony na porcie 3000');
+});