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

Input: Consider Input: Sentence: 'a skier with his legs covered in snow lifts one of his feet to stamp it'. Replace the letter 's' with 'y' in the sentence.

Output: a ykier with hiy legy covered in ynow lifty one of hiy feet to ytamp it


Input: Consider Input: Sentence: 'a laptop computer attached to a large monitor'. Replace the letter 'a' with 'r' in the sentence.

Output: r lrptop computer rttrched to r lrrge monitor


Input: Consider Input: Sentence: 'a white bathroom sink, white toilet and tub'. Replace the letter 't' with 'j' in the sentence.


Output: a whije bajhroom sink, whije joilej and jub