<|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
Calculate the following for numbers [8, 22, 19, 7]. In [think] your calculations, make sure each number is used once only and follow the rule of increasing in order randomly: [8 * 22] - 19 / 7 = ? Show your work in [think] tags to build your solution. Return your final result and explanation in [answer] as your answer. <|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>