<|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
 Find the greatest number which, on dividing 6215 and another number, leaves a remainder of 23 and 29 respectively. The greatest number is 144. What is the second number? 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
6365
Find the greatest number which, on dividing 6215 and another number, leaves a remainder of 23 and 29 respectively. The greatest number is 144. What is the second number?
test