diff --git a/src/TextLogik.java b/src/TextLogik.java
index 09e006b..74e5ffa 100644
--- a/src/TextLogik.java
+++ b/src/TextLogik.java
@@ -18,10 +18,10 @@ public class TextLogik {
             switch (command[0]) {
                 case "ADD":
                     if (command.length == 1) {
-                        text.add(TextInput.getTextInput());
+                        checkIfSuccess(text.add(TextInput.getTextInput()));
                     } else if (isNumeric(command[1])) {
                         int line = Integer.parseInt(command[1]);
-                        text.add(line, TextInput.getTextInput());
+                        checkIfSuccess(text.add(line, TextInput.getTextInput()));
                     } else {
                         textOutput.errorInvalidCommand();
                     }
@@ -38,7 +38,14 @@ public class TextLogik {
                     }
                     break;
                 case "DUMMY":
-                    text.dummy();
+                    if (command.length == 1) {
+                        checkIfSuccess(text.dummy());
+                    } else if (isNumeric(command[1])) {
+                        int line = Integer.parseInt(command[1]);
+                        checkIfSuccess(text.dummy(line));
+                    } else {
+                        textOutput.errorInvalidCommand();
+                    }
                     break;
                 case "EXIT":
                     break;