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 scene of a river with a in bridge the distance
Example Output: (8, 9)

Example Input: A bunch of shelves holding knick knacks two on walls with a window
Example Output: (8, 9)

Example Input: A street intersection is crowded with bus a cars and bicyclists
Example Output:
(7, 8)