diff --git a/tasks/dyck/Dyck.java b/tasks/dyck/Dyck.java
index 94ac702..0368f70 100644
--- a/tasks/dyck/Dyck.java
+++ b/tasks/dyck/Dyck.java
@@ -354,12 +354,17 @@ private static void outputFail(String testName, String message) {
 
     public static void main(String[] args) {
         Scanner sc = new Scanner(System.in);
-        int testcases = sc.nextInt();
-        for (int t = 0; t < testcases; ++t) {
-            int n = sc.nextInt();
-            ArrayList<Character> list = new ArrayList<>();
-            for (int i = 0; i < n; ++i) list.add(sc.next().charAt(0));
-            System.out.println(new Dyck().checkParentheses(list));
-        }
+        
+        if (sc.hasNextInt()) {
+            int testcases = sc.nextInt();
+            for (int t = 0; t < testcases; ++t) {
+                int n = sc.nextInt();
+                ArrayList<Character> list = new ArrayList<>();
+                for (int i = 0; i < n; ++i) list.add(sc.next().charAt(0));
+                    System.out.println(new Dyck().checkParentheses(list));
+            }
+        } else {
+            new Dyck().testAll();
+        }        
     }
 }