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

Ex Input:
Sentence: 'a man in a baseball cap watching something in the air'. Replace the letter 'g' with 'o' in the sentence.

Ex Output:
a man in a baseball cap watchino somethino in the air


Ex Input:
Sentence: 'a hipster riding a skateboard up the side of a wall'. Replace the letter 's' with 'm' in the sentence.

Ex Output:
a hipmter riding a mkateboard up the mide of a wall


Ex Input:
Sentence: 'a u.s. military helicopter landing or taking off'. Replace the letter 'i' with 'l' in the sentence.

Ex Output:

a u.s. mllltary hellcopter landlng or taklng off