蔡文霖

1. from decimal import Decimal, ROUND_HALF_UP
   
2. 
   
3. a=int(input())
   
4. b=int(input())
   
5. c=int(input())
   
6. 
   
7. s=a+b+c
   
8. print(f"{a}+{b}+{c}=",s)
   
9. 
   
10. avg=Decimal(str(s/3)).quantize(Decimal('0.00'),rounding=ROUND_HALF_UP)
    
11. print(avg)

複製代碼