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: an is elephant walking on some grass and some trees
Example Output: (2, 3)

Example Input: Two cows standing are by a wooden fence
Example Output: (3, 4)

Example Input: Horses grazing on a grassy hillside with more hills in background the
Example Output:
(11, 12)