diff --git a/Lab1/.idea/compiler.xml b/Lab1/.idea/compiler.xml
new file mode 100644
index 0000000..a75b49e
--- /dev/null
+++ b/Lab1/.idea/compiler.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="Lab1" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Lab1/.idea/jarRepositories.xml b/Lab1/.idea/jarRepositories.xml
new file mode 100644
index 0000000..712ab9d
--- /dev/null
+++ b/Lab1/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Lab1/.idea/workspace.xml b/Lab1/.idea/workspace.xml
new file mode 100644
index 0000000..2fc964e
--- /dev/null
+++ b/Lab1/.idea/workspace.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="ff9fbabd-c6f4-4452-a145-36bce2333543" name="Changes" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="ProjectColorInfo">{
+  &quot;associatedIndex&quot;: 2
+}</component>
+  <component name="ProjectId" id="343SvKZ6GEYYNbwVeXEogwiVrmv" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "kotlin-language-version-configured": "true",
+    "last_opened_file_path": "D:/Studia/Semestr 7/Procesy wytwarzania oprogramowania lab/demo",
+    "nodejs_package_manager_path": "npm",
+    "onboarding.tips.debug.path": "D:/Studia/Semestr 7/Procesy wytwarzania oprogramowania lab/Lab1/src/main/java/org/example/Main.java",
+    "vue.rearranger.settings.migration": "true"
+  }
+}]]></component>
+  <component name="SharedIndexes">
+    <attachedChunks>
+      <set>
+        <option value="bundled-jdk-9823dce3aa75-125ca727e0f0-intellij.indexing.shared.core-IU-243.24978.46" />
+        <option value="bundled-js-predefined-d6986cc7102b-76f8388c3a79-JavaScript-IU-243.24978.46" />
+      </set>
+    </attachedChunks>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="ff9fbabd-c6f4-4452-a145-36bce2333543" name="Changes" comment="" />
+      <created>1760440996105</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1760440996105</updated>
+      <workItem from="1760440997464" duration="25000" />
+      <workItem from="1760441229160" duration="73000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <line-breakpoint enabled="true" type="java-line">
+          <url>file://$PROJECT_DIR$/src/main/java/org/example/Main.java</url>
+          <line>13</line>
+          <option name="timeStamp" value="1" />
+        </line-breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
+</project>
\ No newline at end of file
diff --git a/demo b/demo
new file mode 160000
index 0000000..2654516
--- /dev/null
+++ b/demo
@@ -0,0 +1 @@
+Subproject commit 265451685ed11a8110cf67bdf82985c703ce9199