diff --git a/app/zadanieDnia1.js b/app/zadanieDnia1.js
index 8c20173..2864380 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 server = http.createServer((req, res) => {
+    res.setHeader("Content-Type", "text/html; charset=utf-8");
+    res.end("<h1>Hello, World from back-end!</h1>");
+});
+
+server.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..07ffdbf 100644
--- a/app/zadanieDnia2.js
+++ b/app/zadanieDnia2.js
@@ -1 +1,11 @@
-//Twój kod
\ No newline at end of file
+const http = require('http');
+
+const server = http.createServer((req, res) => {
+    const userAgent = req.headers['user-agent'];
+    res.setHeader("Content-Type", "text/html; charset=utf-8");
+    res.end(userAgent);
+});
+
+server.listen(3000, () => {
+    console.log('Serwer uruchomiony na porcie 3000');
+});
\ No newline at end of file