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: Sevreal motorbikes parked on a sidewalk near a building.

Output: Sevreal


Input: Consider Input: A pizza stting on top of a white plate next to another white plate topped with another pizza.


Output: stting