在Bulls and Cows游戏中，你需要根据秘密数字和朋友的猜测返回提示，提示包含准确位置的匹配数（公牛）和不匹配位置的匹配数（母牛）。例如，秘密数字为`1807`，猜测为`7810`，则返回`1A3B`。此问题要求忽略重复数字。你可以通过比较两个数字的对应位并计算匹配项来解决。
You are playing the following Bulls and Cows game with your friend: You write down a number and ask your friend to guess what the number is. Each time your friend makes a guess, you provide a hint that indicates how many digits in said guess match your secret number exactly in both digit and position (called "bulls") and how many digits match the secret number but locate in the wrong position (called "cows"). Your friend w
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