Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Title: Cocoa. Sentence 1: Kelly was craving chocolate milk, but she had no powder or syrup. Sentence 2: She decided to improvise with a packet of hot cocoa. Sentence 3: It was a foul-tasting concoction. Sentence 4: But, stir as she might, she couldn't get the yucky powder to mix! Sentence 5: At least, Kelly reasoned, you never know until you try!
Student:
43