Detailed Instructions: 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: Where Are Your Shoes?. Sentence 1: Madison had just started Kindergarten and got bored easily in class. Sentence 2: The teacher was explaining something very uninteresting that day. Sentence 3: Unknowingly she tied her shoes together and could not get them apart. Sentence 4: Madi began to fiddle with her shoelaces to entertain herself. Sentence 5: Madi had to take tiny steps the whole way to mom's car after school.
A:
43