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: Missed. Sentence 1: I was out of state for about a week the other month. Sentence 2: While I was gone I was missing my puppies a lot. Sentence 3: When I got home they were very attached to me. Sentence 4: I never really thought about if they missed me. Sentence 5: It was very pleasant to know how much my puppies missed me.
34