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

Ex Input:
Sentence: 'a chocolate cake decorated with strawberries on the side'. Replace the letter 'c' with 'x' in the sentence.

Ex Output:
a xhoxolate xake dexorated with strawberries on the side


Ex Input:
Sentence: 'a black and white photo of a bird clouds sand and water'. Replace the letter 'b' with 'p' in the sentence.

Ex Output:
a plack and white photo of a pird clouds sand and water


Ex Input:
Sentence: 'a person skis down a slope of snow'. Replace the letter 'd' with 's' in the sentence.

Ex Output:

a person skis sown a slope of snow