In this task, you're given the title of a story consisting of five sentences, numbered 1 through 5. Your job is to determine which two sentences need to be swapped sentences in order to make a story that makes complete sense and is befittingly titled. Indicate your answer using the numbers of the two sentences in order, such as '34' or '25'. The first digit refers to the sentence which should come first in the story.

Title: First time on stage. Sentence 1: Slowly he walked to his place on stage and began to play. Sentence 2: He barely heard the announcer as he was introduced. Sentence 3: The crowd chanted the name of the band he was now a part of. Sentence 4: Mark stood backstage, his pulse racing. Sentence 5: By the end of the show, he had completely overcome his nervousness.
14