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

Ex Input:
Sentence: 'a room with a bed, lamps, tables and pillows'. Replace the letter 's' with 'b' in the sentence.

Ex Output:
a room with a bed, lampb, tableb and pillowb


Ex Input:
Sentence: 'adult man on grassy field playing disc game'. Replace the letter 'n' with 'l' in the sentence.

Ex Output:
adult mal ol grassy field playilg disc game


Ex Input:
Sentence: 'travelers sitting and standing near their luggage in a terminal'. Replace the letter 'r' with 'x' in the sentence.

Ex Output:

txavelexs sitting and standing neax theix luggage in a texminal