In this task, you are given a date in a particular format and you need to convert to another format. If given format is "dd/mm/yyyy" then convert to "mm/dd/yyyy". If given format is "mm/dd/yyyy" then convert to "dd/mm/yyyy".

Example Input: 20/05/1687, input_format=dd/mm/yyyy
Example Output: 05/20/1687

Example Input: 08/04/1750, input_format=dd/mm/yyyy
Example Output: 04/08/1750

Example Input: 12/12/1704, input_format=dd/mm/yyyy
Example Output:
12/12/1704