Given the task definition and input, reply with output. 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: No Sleepovers. Sentence 1: My son is half Chinese (myself) and half white (my wife). Sentence 2: Growing up, he had sleepovers like many of his friends. Sentence 3: The boy said his family would not allow him. Sentence 4: One day he asked a Chinese boy to sleep over. Sentence 5: I remembered that none of us had sleepovers growing up.
43