<|im_start|>system
You are a helpful assistant. You first thinks about the reasoning process in the mind and then provides the user with the answer.<|im_end|>
<|im_start|>user
In a third-grade math competition, you need to reach a score of 102 out of 120 by solving a Countdown Game puzzle. Using the numbers [20, 45, 33, 6], you can only use each number once, and you need to use basic arithmetic operations (+, -, *, /). Show your work in <think> </think> tags. And return the final equation and answer in <answer> </answer> tags, for example <answer> (1 + 2) / 3 = 1 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>