<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 A lieutenant is training recruits in formation drills. Upon arriving at the parade ground, he observed that all the recruits were arranged in a number of rows, with the number of soldiers in each row being the same and 5 more than the number of rows. After the training session, the lieutenant decided to form the recruits again but could not remember how many rows there were. He then ordered them to line up so that the number of rows equaled his age. It turned out that once again, the soldiers were evenly distributed among the rows, but this time there were 4 more soldiers per row than in the original formation. How old is the lieutenant? Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
24
A lieutenant is training recruits in formation drills. Upon arriving at the parade ground, he observed that all the recruits were arranged in a number of rows, with the number of soldiers in each row being the same and 5 more than the number of rows. After the training session, the lieutenant decided to form the recruits again but could not remember how many rows there were. He then ordered them to line up so that the number of rows equaled his age. It turned out that once again, the soldiers were evenly distributed among the rows, but this time there were 4 more soldiers per row than in the original formation. How old is the lieutenant?
test