diff --git a/.idea/rGraphicsSettings.xml b/.idea/rGraphicsSettings.xml
new file mode 100644
index 0000000..b5b9c2e
--- /dev/null
+++ b/.idea/rGraphicsSettings.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RGraphicsSettings">
+    <option name="height" value="576" />
+    <option name="resolution" value="75" />
+    <option name="version" value="2" />
+    <option name="width" value="2048" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/rSettings.xml b/.idea/rSettings.xml
new file mode 100644
index 0000000..ca29c32
--- /dev/null
+++ b/.idea/rSettings.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RSettings">
+    <option name="interpreterPath" value="C:\Program Files\R\R-4.3.2\bin\R.exe" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 4319917..9faec8d 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -10,8 +10,8 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="42ed9a51-9564-48c5-b5fa-035301b1578d" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/ha_11/loosen_janniclas_1540907_12.cpp" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/modules.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/modules.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/ext_01/quick.py" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/ext_02/exercise.r" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -22,53 +22,54 @@
   <component name="ClangdSettings">
     <option name="formatViaClangd" value="false" />
   </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Python Script" />
+      </list>
+    </option>
+  </component>
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
-  <component name="ProjectColorInfo"><![CDATA[{
-  "associatedIndex": 0
-}]]></component>
+  <component name="ProjectColorInfo">{
+  &quot;associatedIndex&quot;: 0
+}</component>
   <component name="ProjectId" id="2ad23KMVrbf8YEYMjvnrmBZ8MSS" />
   <component name="ProjectViewState">
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "C/C++ File.loosen_janniclas_1540907_12.cpp.executor": "Run",
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "RunOnceActivity.cidr.known.project.marker": "true",
-    "RunOnceActivity.readMode.enableVisualFormatting": "true",
-    "WebServerToolWindowFactoryState": "false",
-    "cf.first.check.clang-format": "false",
-    "cidr.known.project.marker": "true",
-    "git-widget-placeholder": "main",
-    "last_opened_file_path": "C:/Universitaet/UNI_Python",
-    "node.js.detected.package.eslint": "true",
-    "node.js.detected.package.tslint": "true",
-    "node.js.selected.package.eslint": "(autodetect)",
-    "node.js.selected.package.tslint": "(autodetect)",
-    "nodejs_package_manager_path": "npm",
-    "python.debugger.dataview.coloredbydefault": "false",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;C/C++ File.loosen_janniclas_1540907_12.cpp.executor&quot;: &quot;Run&quot;,
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.cidr.known.project.marker&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.readMode.enableVisualFormatting&quot;: &quot;true&quot;,
+    &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
+    &quot;cf.first.check.clang-format&quot;: &quot;false&quot;,
+    &quot;cidr.known.project.marker&quot;: &quot;true&quot;,
+    &quot;git-widget-placeholder&quot;: &quot;main&quot;,
+    &quot;last_opened_file_path&quot;: &quot;C:/Universitaet/UNI_Python&quot;,
+    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
+    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
+    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
+    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
+    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
+    &quot;python.debugger.dataview.coloredbydefault&quot;: &quot;false&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <key name="MoveFile.RECENT_KEYS">
+      <recent name="C:\Universitaet\UNI_Python" />
       <recent name="C:\Universitaet\UNI_Python\ueb_01" />
     </key>
   </component>
-  <component name="RunManager" selected="C/C++ File.loosen_janniclas_1540907_12.cpp">
-    <configuration name="loosen_janniclas_1540907_12.cpp" type="CppFileRunConfiguration" factoryName="CppFileRunConfiguration" temporary="true" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="UNI_Python" TARGET_NAME="loosen_janniclas_1540907_12.cpp" CONFIG_NAME="loosen_janniclas_1540907_12.cpp">
-      <option name="sourceFile" value="ha_11\loosen_janniclas_1540907_12.cpp" />
-      <method v="2">
-        <option name="com.jetbrains.cidr.cpp.runfile.CppFileBuildBeforeRunTaskProvider$BasicBuildBeforeRunTask" enabled="true" />
-      </method>
-    </configuration>
+  <component name="RunManager" selected="Python.quick">
     <configuration name="control" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="UNI_Python" />
-      <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
       <option name="PARENT_ENVS" value="true" />
       <envs>
@@ -91,7 +92,6 @@
     </configuration>
     <configuration name="loosen_janniclas_1540907_09 (1)" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="UNI_Python" />
-      <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
       <option name="PARENT_ENVS" value="true" />
       <envs>
@@ -114,7 +114,6 @@
     </configuration>
     <configuration name="loosen_janniclas_1540907_09" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="UNI_Python" />
-      <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
       <option name="PARENT_ENVS" value="true" />
       <envs>
@@ -137,7 +136,6 @@
     </configuration>
     <configuration name="loosen_janniclas_1540907_10" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
       <module name="UNI_Python" />
-      <option name="ENV_FILES" value="" />
       <option name="INTERPRETER_OPTIONS" value="" />
       <option name="PARENT_ENVS" value="true" />
       <envs>
@@ -158,9 +156,31 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
+    <configuration name="quick" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+      <module name="UNI_Python" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
+      </envs>
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/ext_01" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/ext_01/quick.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="false" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
     <recent_temporary>
       <list>
-        <item itemvalue="C/C++ File.loosen_janniclas_1540907_12.cpp" />
+        <item itemvalue="Python.quick" />
         <item itemvalue="Python.loosen_janniclas_1540907_10" />
         <item itemvalue="Python.control" />
         <item itemvalue="Python.loosen_janniclas_1540907_09 (1)" />
@@ -190,6 +210,8 @@
       <workItem from="1705431087533" duration="5323000" />
       <workItem from="1705489565514" duration="13418000" />
       <workItem from="1707215006454" duration="7963000" />
+      <workItem from="1708350583995" duration="9077000" />
+      <workItem from="1708463558300" duration="3000" />
     </task>
     <servers />
   </component>
@@ -212,5 +234,6 @@
     <SUITE FILE_PATH="coverage/UNI_Python$loosen_janniclas_1540907_10.coverage" NAME="loosen_janniclas_1540907_10 Coverage Results" MODIFIED="1705503074164" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/ha_09" />
     <SUITE FILE_PATH="coverage/UNI_Python$control.coverage" NAME="control Coverage Results" MODIFIED="1705244854276" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/ext_01" />
     <SUITE FILE_PATH="coverage/UNI_Python$loosen_janniclas_1540907_09.coverage" NAME="loosen_janniclas_1540907_09 Coverage Results" MODIFIED="1704711219437" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/ha_08" />
+    <SUITE FILE_PATH="coverage/UNI_Python$quick.coverage" NAME="quick Coverage Results" MODIFIED="1707513736546" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/ext_01" />
   </component>
 </project>
\ No newline at end of file
diff --git a/ext_01/quick.py b/ext_01/quick.py
new file mode 100644
index 0000000..0c75dce
--- /dev/null
+++ b/ext_01/quick.py
@@ -0,0 +1,7 @@
+count = 0
+for i in range(10000):  # Start from 100
+    num_str = str(i).zfill(4)  # fill with zeros
+    if len(set(num_str)) == 3:
+        count += 1
+print(f"Total numbers with three different digits: {count}")
+
diff --git a/ext_02/exercise.r b/ext_02/exercise.r
new file mode 100644
index 0000000..651c4f3
--- /dev/null
+++ b/ext_02/exercise.r
@@ -0,0 +1,43 @@
+age <- 22;
+name <- "janniclas";
+
+numbers <- seq(1:10);
+alphabeth <- LETTERS;
+
+# print(class(22));
+
+even <- numbers[numbers %% 2 == 0];
+smaller <- numbers[numbers < mean(numbers)];
+
+# cat("Sum:", sum(numbers[numbers < mean(numbers)]), "\n");
+# cat("Sum:", sum(numbers < mean(numbers)), "\n");
+# cat("Correct Sum:", sum(smaller), "\n");
+
+# print(numbers < mean(numbers));
+
+infos <- c(name=name,age=age,sex="male");
+print(infos["name"]);
+
+matrix <- array(seq(1:9), dim = c(3, 3));
+# print(class(matrix));
+
+x <- 1:50;
+exercise <- sapply(1:2, function(y) mean(x[y+2*(0:49)]));
+# print(exercise);
+
+vect <- array(rep(1, 10), 10);
+
+x <- 1:100;
+# print(x > 10);
+# print(mean(x > 10));
+# print(mean(x[x > 10]));
+
+doomsday <- as.Date("2012-12-12");
+doomsdays <- weekdays(seq(as.Date("0000-12-12"), by="year", length.out = 2022));
+weekdays <- weekdays(seq(as.Date("19-02-2024"), by="days", length.out = 7));
+
+calc <- sapply(weekdays, function(y) sum(doomsdays == y));
+count <- calc[2];
+
+x <- 2*(1:5);
+print(x);
\ No newline at end of file