diff --git a/Jenkinsfile b/Jenkinsfile
index 70fd2f1..2eb3768 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -30,8 +30,7 @@ pipeline {
 
         stage('Zadanie 3 - Metryki') {
             steps {
-                sh 'gcc --version'
-                sh 'git --version'
+                sh 'python3 ./zadanie3/script.py'
             }
         }
     }
diff --git a/zadanie3/script.py b/zadanie3/script.py
new file mode 100644
index 0000000..0f9a55e
--- /dev/null
+++ b/zadanie3/script.py
@@ -0,0 +1,4 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+print 'Hello, world!'
\ No newline at end of file