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

Input: Consider Input: Sentence: 'you are never to old to play with the nintendo wii'. Replace the letter 'e' with 'v' in the sentence.

Output: you arv nvvvr to old to play with thv nintvndo wii


Input: Consider Input: Sentence: 'three young school girls waiting on a subway train platform'. Replace the letter 't' with 'o' in the sentence.

Output: ohree young school girls waioing on a subway orain plaoform


Input: Consider Input: Sentence: 'a surfboard in some grass on a field'. Replace the letter 'a' with 'p' in the sentence.


Output: p surfboprd in some grpss on p field