<|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 [33, 56, 78, 99], create an equation that equals 100. Employ the basic arithmetic operations (+, -, *, /) and each number must be used only once. Offer your reasoning in <think> </think> tags. And present your final equation and solution in <answer> </answer> tags, like this: <answer> (33 + 56) - 99 = 100 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>