In this task, positions of two consecutive words have been swapped. You need to output the position of the swaped words. e.g. in the sentence 'Seattle has nice a weather', the word 'a' and 'nice' have been swapped. These words are at 3rd and 4th position respectively. So, the output should be (3, 4). Note that the index of first word is 1.

Example Input: A man sitting on a couch a holding black and white dog
Example Output: (7, 8)

Example Input: A young boy a doing trick on a skateboard
Example Output: (4, 5)

Example Input: many people walking luggage holding bags in a tunnel
Example Output:
(4, 5)