In this task, you need to replace a letter in the sentence with another given letter.

Input: Consider Input: Sentence: 'this is a cute dog sticking his head out of the window of a red car'. Replace the letter 'e' with 'z' in the sentence.

Output: this is a cutz dog sticking his hzad out of thz window of a rzd car


Input: Consider Input: Sentence: 'a giraffe sticks its tongue out in the air'. Replace the letter 'e' with 'l' in the sentence.

Output: a giraffl sticks its tongul out in thl air


Input: Consider Input: Sentence: 'a person riding a surf board with a parachute'. Replace the letter 'a' with 'f' in the sentence.


Output: f person riding f surf bofrd with f pfrfchute