The given sentence contains a typo which could be one of the following four types: (1) swapped letters of a word e.g. 'niec' is a typo of the word 'nice'. (2) missing letter in a word e.g. 'nic' is a typo of the word 'nice'. (3) extra letter in a word e.g. 'nicce' is a typo of the word 'nice'. (4) replaced letter in a word e.g 'nicr' is a typo of the word 'nice'. You need to identify the typo in the given sentence. To do this, answer with the word containing the typo.

Input: Consider Input: cat aitting on top of a red and black motorcycle outdoors

Output: aitting


Input: Consider Input: A laerge circus elephant walking down the middle of a street.

Output: laerge


Input: Consider Input: A fiere hydrant sitting in the middle of a green field.


Output: fiere