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

Input: Consider Input: Sentence: 'a gray elephant standing next to green bushes'. Replace the letter 'e' with 'o' in the sentence.

Output: a gray olophant standing noxt to groon bushos


Input: Consider Input: Sentence: 'a small bird perched on some thin branches'. Replace the letter 'a' with 'f' in the sentence.

Output: f smfll bird perched on some thin brfnches


Input: Consider Input: Sentence: 'two beachcombers  watch a parachuter land just offshore'. Replace the letter 'r' with 'h' in the sentence.


Output: two beachcombehs  watch a pahachuteh land just offshohe