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

Ex Input:
Sentence: 'some brown black and white horses clouds and rocks'. Replace the letter 'a' with 'n' in the sentence.

Ex Output:
some brown blnck nnd white horses clouds nnd rocks


Ex Input:
Sentence: 'a herd of zebra grazing in a lush green field'. Replace the letter 'h' with 'j' in the sentence.

Ex Output:
a jerd of zebra grazing in a lusj green field


Ex Input:
Sentence: 'a baseball player wearing a catchers mitt on a field'. Replace the letter 'e' with 'd' in the sentence.

Ex Output:

a basdball playdr wdaring a catchdrs mitt on a fidld