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 lidt on a snowy hill bordered by image of film roll.

Output: lidt


Input: Consider Input: A mabn is holding a cell phone next to a girl, who is holding a drink.

Output: mabn


Input: Consider Input: a bird istting on the horn of a mask that is leaning against a window.


Output: istting