title: How to get last 2 numbers from X cell and add them before @ in Y cell?
body: <p>I need a formula to auto get the last two numbers from Birthday row and add them in the Email row before the <code>@</code> symbol like this:<br />
  <code>afscghnaba**97**@example.com</code><br />
  screenshot for explaining what I want to do:</p>
  <p><a href="https://i.stack.imgur.com/lw0rX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lw0rX.png" alt="example" /></a></p>
  <p>Sheet URL: <a href="https://docs.google.com/spreadsheets/d/1XHoxD-hNmpUOMVm_u-cz-4ESrabodsrS0fIfaN-n4js/edit" rel="nofollow noreferrer">https://docs.google.com/spreadsheets/d/1XHoxD-hNmpUOMVm_u-cz-4ESrabodsrS0fIfaN-n4js/edit</a></p>
  <p>Thank you!</p>