<|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
 In preparation for the Shanghai World Expo, 20 volunteers were recruited, numbered from 1 to 20. If we were to randomly select 4 individuals and divide them into two groups based on their numbers, with the two individuals having smaller numbers in one group and the two with larger numbers in another group, how many ways can we ensure that volunteers number 5 and 14 are selected and placed in the same group? 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
21
In preparation for the Shanghai World Expo, 20 volunteers were recruited, numbered from 1 to 20. If we were to randomly select 4 individuals and divide them into two groups based on their numbers, with the two individuals having smaller numbers in one group and the two with larger numbers in another group, how many ways can we ensure that volunteers number 5 and 14 are selected and placed in the same group?
test