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

Input: Consider Input: Sentence: 'a girl sitting in a chair eating a slice of pizza'. Replace the letter 'i' with 'x' in the sentence.

Output: a gxrl sxttxng xn a chaxr eatxng a slxce of pxzza


Input: Consider Input: Sentence: 'a house cat sits on an oven door, sniffing the oven racks inside'. Replace the letter 'i' with 'y' in the sentence.

Output: a house cat syts on an oven door, snyffyng the oven racks ynsyde


Input: Consider Input: Sentence: 'a person on a snowboard in the snow'. Replace the letter 'h' with 'r' in the sentence.


Output: a person on a snowboard in tre snow