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

Input: Consider Input: Sentence: 'a man is posing in a desert, leaning on a sign with an image of a camel on it'. Replace the letter 'i' with 'r' in the sentence.

Output: a man rs posrng rn a desert, leanrng on a srgn wrth an rmage of a camel on rt


Input: Consider Input: Sentence: 'a man with a backpack on a motorcycle'. Replace the letter 't' with 'd' in the sentence.

Output: a man widh a backpack on a modorcycle


Input: Consider Input: Sentence: 'a child is walking up a snow covered hill in skis'. Replace the letter 's' with 'e' in the sentence.


Output: a child ie walking up a enow covered hill in ekie