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.

Ex Input:
A whote car with a white dog hanging out the side of a window.

Ex Output:
whote


Ex Input:
Several jites being flown in the sky that are attached to each other by strings.

Ex Output:
jites


Ex Input:
blak and white image of a person hitting a tennis ball on a court

Ex Output:

blak