<|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
Using the numbers [1, 7, 13, 22], come up with an equation that equals 24. Use the operations (×, ÷, +, -, but remember, each number should only be used once. Provide your final equation and solution in <think> </think> and <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>