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

Ex Input:
Sentence: 'a woman in blue jacket shaving a cows utters'. Replace the letter 'h' with 'q' in the sentence.

Ex Output:
a woman in blue jacket sqaving a cows utters


Ex Input:
Sentence: 'a mouse and keyboard sitting on a wooden desk'. Replace the letter 'a' with 'n' in the sentence.

Ex Output:
n mouse nnd keybonrd sitting on n wooden desk


Ex Input:
Sentence: 'a man sitting on a bench with a teddy bear in his book bag'. Replace the letter 'i' with 'b' in the sentence.

Ex Output:

a man sbttbng on a bench wbth a teddy bear bn hbs book bag