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

Input: Consider Input: Sentence: 'a box of a dozen doughnuts all varieties'. Replace the letter 'l' with 'i' in the sentence.

Output: a box of a dozen doughnuts aii varieties


Input: Consider Input: Sentence: 'a man dressed in a knight costume riding a horse performing at a show'. Replace the letter 'e' with 'j' in the sentence.

Output: a man drjssjd in a knight costumj riding a horsj pjrforming at a show


Input: Consider Input: Sentence: 'a green train travels on the tracks through the city'. Replace the letter 'e' with 't' in the sentence.


Output: a grttn train travtls on tht tracks through tht city