黃裕恩

1. from decimal import Decimal, ROUND_HALF_UP
   
2. a=int(input())
   
3. b=int(input())
   
4. c=int(input())
   
5. s=a+b+c  
   
6. print(f"{a}+{b}+{c}={s}")
   
7. v=Decimal(str(s/3)).quantize(Decimal('0.00'),rounding=ROUND_HALF_UP)
   
8. print(v)

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