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: A laoptop and bowl of food sits on top of the food.

Output: laoptop


Input: Consider Input: A grup of people  that are skiing in the snow.

Output: grup


Input: Consider Input: A gropu of young people are having a discussion in front of a huge brush pile.


Output: gropu