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.

Input: Consider Input: People are balancing themselves on skateboards in the middle of street a

Output: (11, 12)


Input: Consider Input: a old very train engine and a coal car behind it

Output: (2, 3)


Input: Consider Input: A group of men are for waiting their bags to be unloaded


Output: (6, 7)