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: Baby Blues. Sentence 1: Andy and his wife decided they would try to adopt a baby instead. Sentence 2: However, after three years, their attempts to conceive did not work. Sentence 3: Andy and his wife had been trying to conceive a child for three years. Sentence 4: After meeting with an adoption agency, they now had to wait. Sentence 5: Andy was hopeful that they would get good news about adopting a baby.

13