How do I specify the current page address in the form settings?

Hello.

I have a question. There are two nodes - A and B. A webform is inserted into node B. When a user navigates from node A by clicking on its title, the view displays node B. That is, we get a page where the address bar shows the number of node A (for example: http://site/node/56), but in fact, node B is displayed. If you click the "submit" button on the webform of node B, it automatically redirects us to the page whose address we specify in the webform settings (see image). I need it to redirect us to a page that would "remember" the number of node A (for example: http://site/56/page). This is necessary so that later we can specify 56 as an argument in the view. The question is: what should I write in the field (see image)? I tried using tokens, but it didn't work out.