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 haf eaten sandwich sitting on a wrapper.

Output: haf


Input: Consider Input: A majeshift kitchen with a tiled wall and counter.

Output: majeshift


Input: Consider Input: A number of sheep graze nonchalantly in the easement by the city steet.


Output: steet.