Hello to all and thanks in advance. I am in a townhouse that is attached to the neigbor and we share drains. Pictured is the inside of my wall (which have all the drains) and what you see is a double Wye that extends to both of our bathroom sinks. I would like to move my drain 18” down the wall to the red dot to accommodate the new vanity that I have going in. What drain fitting would I use in place of the double wye to tie their drain back in place?