<|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
Use the numbers [40, 19, 5, 2] to create an equation that equals 107. You may use basic arithmetic operations (+, -, *, /) and each number can only be used once. Show your work in <think> </think> tags. Return your full solution and your answer in <answer> </answer> tags, for example <answer> 5 * (40 - 19) + 2 = 107 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>