diff --git a/.run/Demo11.run.xml b/.run/Demo11.run.xml
index 07d914d..ea7c1fc 100644
--- a/.run/Demo11.run.xml
+++ b/.run/Demo11.run.xml
@@ -3,7 +3,7 @@
     <option name="ALTERNATIVE_JRE_PATH" value="graalvm-ce-23" />
     <option name="MAIN_CLASS_NAME" value="org.jcnc.snow.cli.SnowCLI" />
     <module name="Snow" />
-    <option name="PROGRAM_PARAMETERS" value="compile run -d playground/Demo11 -o target/Demo11" />
+    <option name="PROGRAM_PARAMETERS" value="compile run -d playground/Demo/Demo11 -o target/Demo11" />
     <extension name="coverage">
       <pattern>
         <option name="PATTERN" value="org.jcnc.snow.compiler.parser.preprocessor.lexer.impl.api.*" />
diff --git a/.run/Demo13.run.xml b/.run/Demo13.run.xml
new file mode 100644
index 0000000..2544ad6
--- /dev/null
+++ b/.run/Demo13.run.xml
@@ -0,0 +1,10 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Demo13" type="Application" factoryName="Application" folderName="Demo">
+    <option name="MAIN_CLASS_NAME" value="org.jcnc.snow.cli.SnowCLI" />
+    <module name="Snow" />
+    <option name="PROGRAM_PARAMETERS" value="compile run -d playground/Demo/Demo13 -o target/Demo13" />
+    <method v="2">
+      <option name="Make" enabled="true" />
+    </method>
+  </configuration>
+</component>
\ No newline at end of file
diff --git a/.run/测试.run.xml b/.run/测试.run.xml
index 43d3751..08ceacd 100644
--- a/.run/测试.run.xml
+++ b/.run/测试.run.xml
@@ -3,6 +3,7 @@
     <toRun name="Demo1" type="Application" />
     <toRun name="Demo10" type="Application" />
     <toRun name="Demo11" type="Application" />
+    <toRun name="Demo13" type="Application" />
     <toRun name="Demo2" type="Application" />
     <toRun name="Demo3" type="Application" />
     <toRun name="Demo4" type="Application" />
diff --git a/playground/Demo/Demo13/Main.snow b/playground/Demo/Demo13/Main.snow
new file mode 100644
index 0000000..dee7b5b
--- /dev/null
+++ b/playground/Demo/Demo13/Main.snow
@@ -0,0 +1,69 @@
+module: Main
+    function: main
+        return_type: int
+        body:
+            5 == 7
+            5 == 7s
+            5 == 7b
+            5 == 7l
+            5 == 7f
+            5 == 7d
+
+            5b == 5b
+            5b == 5s
+            5b == 5l
+            5b == 5f
+            5b == 5d
+
+            5s == 5s
+            5s == 5l
+            5s == 5f
+            5s == 5d
+
+            5l == 5l
+            5l == 5f
+            5l == 5d
+
+            5f == 5f
+            5f == 5d
+
+            5d == 5d
+
+            declare b: byte = 8b
+            declare s: short = 8s
+            declare i: int = 8
+            declare l: long = 8l
+            declare f: float = 8f
+            declare d: double = 8d
+
+            b == b
+            b == s
+            b == i
+            b == l
+            b == f
+            b == d
+
+            s == s
+            s == i
+            s == l
+            s == f
+            s == d
+
+            i == i
+            i == l
+            i == f
+            i == d
+
+            l == l
+            l == f
+            l == d
+
+            f == f
+            f == d
+
+            d == d
+
+            return 65537
+        end body
+    end function
+end module
\ No newline at end of file