diff --git a/walk2.py b/walk2.py
index dc99a68..0eb7ce6 100644
--- a/walk2.py
+++ b/walk2.py
@@ -151,13 +151,12 @@ if __name__ == "__main__":
     try:
         while True:
             if is_input_available():
-                input_chars = sys.stdin.read().strip()
-                for char in input_chars:
-                    if char in ['w', 'a', 'd', 's']:
-                        command_queue.put(char)
-                    elif char == 'q':
-                        print("Exiting...")
-                        exit()
+                input_char = sys.stdin.read(1).strip()
+                if input_char in ['w', 'a', 'd', 's']:
+                    command_queue.put(input_char)
+                elif input_char == 'q':
+                    print("Exiting...")
+                    break
 
             while not command_queue.empty():
                 command = command_queue.get()