<|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
Can you solve the puzzle of forming an equation that ends in 22 using the numbers [25, 20, 6, 77], each number only once, with only the cardinal arithmetic operations plus, minus, multiply, and divide? Show your steps in <think> </think> tags and provide the completed equation answer, exactly as seen in the example below - <answer> </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>