#include <stdio.h> int main() { int s=0; int sum=0; int max=0; int min=100; int count=0; while(scanf("%d",&s)==1) { sum+=s; if(max<s) max=s; if(min>s) min=s; count++; if(count==7) { printf("%.2lf\n",(sum-max-min)/5.0); //重置数据 sum=0; max=0; min=100; count=0; } } return 0; }