<|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 set x consists of 10 integers and has a median of 30 and a certain range. The greatest possible integer that can be present in the set is 50. What is the range of the set? 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
20
A set x consists of 10 integers and has a median of 30 and a certain range. The greatest possible integer that can be present in the set is 50. What is the range of the set?
test