<|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 couple's wedding reception had 180 people. The bride and groom had each invited some couples from their side of the family, and the remaining guests were 100 friends. How many couples did each of the bride and groom invite from their side of the family? 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
40
A couple's wedding reception had 180 people. The bride and groom had each invited some couples from their side of the family, and the remaining guests were 100 friends. How many couples did each of the bride and groom invite from their side of the family?
test