diff --git a/.run/Demo8.run.xml b/.run/Demo8.run.xml
new file mode 100644
index 0000000..3c9d4d8
--- /dev/null
+++ b/.run/Demo8.run.xml
@@ -0,0 +1,17 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Demo8" type="Application" factoryName="Application" folderName="Demo" activateToolWindowBeforeRun="false">
+    <option name="ALTERNATIVE_JRE_PATH" value="graalvm-ce-23" />
+    <option name="MAIN_CLASS_NAME" value="org.jcnc.snow.compiler.cli.SnowCompiler" />
+    <module name="Snow" />
+    <option name="PROGRAM_PARAMETERS" value="-d playground/Demo8" />
+    <extension name="coverage">
+      <pattern>
+        <option name="PATTERN" value="org.jcnc.snow.compiler.parser.preprocessor.lexer.impl.api.*" />
+        <option name="ENABLED" value="true" />
+      </pattern>
+    </extension>
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/playground/Demo8/Main.snow b/playground/Demo8/Main.snow
new file mode 100644
index 0000000..8ff76af
--- /dev/null
+++ b/playground/Demo8/Main.snow
@@ -0,0 +1,12 @@
+module: Main
+    function: main
+        parameter:
+        return_type: long
+        body:
+            declare n: long
+            n = 2147483647
+            n = n + 1
+            return n
+        end body
+    end function
+end module
\ No newline at end of file