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

Input: Consider Input: Sentence: 'a man that is on the back of an elephant'. Replace the letter 'c' with 'd' in the sentence.

Output: a man that is on the badk of an elephant


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

Output: n mouse nnd keybonrd sitting on n wooden desk


Input: Consider Input: Sentence: 'a pan of food on the burner of a stove being whipped with an electric mixer'. Replace the letter 'o' with 'd' in the sentence.


Output: a pan df fddd dn the burner df a stdve being whipped with an electric mixer