diff --git a/app/zadanieDnia1.js b/app/zadanieDnia1.js
index 8c20173..d179ba4 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 działa...");
+});
\ No newline at end of file
diff --git a/app/zadanieDnia2.js b/app/zadanieDnia2.js
index 8c20173..c30df54 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 srv = http.createServer((req, res) => {
+    const acceptLanguage = req.headers['accept-language'];
+    res.setHeader("Content-Type", "text/html; charset=utf-8");
+    res.end("Preferowane języki: " + acceptLanguage);
+});
+
+srv.listen(3000, () => {
+    console.log("Serwer działa...");
+});
\ No newline at end of file