Q: What is the result of 81 minus 63? A: 
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Q: What is the result of 88 minus 63? A: 
Q: What is the result of 81 minus 60? A: 
Q: What is the result of 81 minus 63? A: 
Q: What is the result of 81 minus 33? A: 
Q: What is the result of 88 minus 60? A: 
Q: What is the result of 81 minus 63? A: 