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

Input: Consider Input: Sentence: 'two police officers riding horses down the street'. Replace the letter 'o' with 'd' in the sentence.

Output: twd pdlice dfficers riding hdrses ddwn the street


Input: Consider Input: Sentence: 'two girls holding blue umbrellas wearing shirts and plastic'. Replace the letter 'd' with 'y' in the sentence.

Output: two girls holying blue umbrellas wearing shirts any plastic


Input: Consider Input: Sentence: 'a man is upside down on his snowboard on the edge of a snow covered cliff'. Replace the letter 'd' with 't' in the sentence.


Output: a man is upsite town on his snowboart on the etge of a snow coveret cliff