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  1. n=int(input())
  2. scorse=list(map(float,input().split(',')))
  3. scorse.sort()
  4. vivid=scorse[2:-2]
  5. avg=sum(vivid)/(n-4)
  6. print(f"{avg:.2f}")
Success #stdin #stdout 0.02s 9348KB
stdin
6
91,78,90,88,82,89
stdout
88.50