Update app.py

app.py

@@ -64,8 +64,8 @@ with demo:
             gr.Image(value="https://img.unocero.com/2019/11/facebook-app-para-hacer-memes-1-1024x576.jpg",label="", type="URL")
         with gr.Column():
             input_expr = gr.Textbox(label="Input", placeholder="Enter an expression here")
-            with gr.Row(): btn_get_tree = gr.Button(value="Get Tree") 
             out_flat_tree = gr.Textbox(label="Flat tree", value="")
+        with gr.Row(): btn_get_tree = gr.Button(value="Get Tree")
         
         
     out_image_tree = gr.HTML(label="")