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

Input: Consider Input: Sentence: 'vintage cartoon elephant and cartoon dog paper tags'. Replace the letter 'p' with 'r' in the sentence.

Output: vintage cartoon elerhant and cartoon dog rarer tags


Input: Consider Input: Sentence: 'a girl riding a horse is jumping the log'. Replace the letter 'a' with 't' in the sentence.

Output: t girl riding t horse is jumping the log


Input: Consider Input: Sentence: 'a white sink and window in a small room'. Replace the letter 'i' with 'k' in the sentence.


Output: a whkte sknk and wkndow kn a small room