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 ittle girl plays ith her skiis in the snow

Output: None


Input: Consider Input: A room filed with an old fashioned stove and  a bear skin rug mounted on it's wall.

Output: filed


Input: Consider Input: A veey blue tiled shower and sink in a newly decorated bathroom.


Output: veey