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.
Q: Title: Lucky Bread. Sentence 1: And he was already late. Sentence 2: Roy was driving to a friend's house to work on a project. Sentence 3: He became lost and never found the house. Sentence 4: And it was too late to work on the project. Sentence 5: But Roy found out that his teacher extended to the due date.
A: 
12