diff --git a/WEB-INF/web.xml b/WEB-INF/web.xml
index 801e577..28fc779 100644
--- a/WEB-INF/web.xml
+++ b/WEB-INF/web.xml
@@ -1,3 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE configuration>
 <web-app>
 </web-app>
diff --git a/src/main/java/proto/Main.java b/src/main/java/proto/Main.java
index 9123742..022625e 100644
--- a/src/main/java/proto/Main.java
+++ b/src/main/java/proto/Main.java
@@ -4,8 +4,8 @@
 
 	public static void main(String[] args) {
 		A ins[] = { new A(10), new B(5), new C(7), new D(8) };
-		for(int i=0;i<4;i++) {
-			System.out.println(ins[i]);
+		for (int i = 0; i < 4; i++) {
+			System.out.println(ins[i].get());
 		}
 	}