Drag Drop Calculate the sum with SwiftUI

Hi Programmers, need help with SwiftUI project drag and drop of an imagebutton/image/button/label/text whatever object on the iPhone screen, on to another same type object. Such as, lets say there is a button or a label which has a numeric value on it. (such as 22) and another label under the VStack has 33 value assigned to it. I want to drag the 1st label and drop it on the second label, and after the drop the both values of 1st and 2nd labels (22 + 33) will be added and written as 55 after dropped on the 2nd label. I need a common onDrop and onDrag delegates to be coded to be used for any type of object that drag and drop can be utilized for iOS applications and I need explanation to be written on usage of the code. Thank you