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: 05/15/1874, input_format=mm/dd/yyyy
Example Output: 15/05/1874

Example Input: 06/10/1720, input_format=dd/mm/yyyy
Example Output: 10/06/1720

Example Input: 15/09/1674, input_format=dd/mm/yyyy
Example Output:
09/15/1674

