#include <stdio.h> int main() { int i,j; int score[7]; while(scanf("%d %d %d %d %d %d %d",&score[0],&score[1],&score[2],&score[3],&score[4],&score[5],&score[6])!=EOF) { //排序后去掉极值 int num = 7; int t;//过渡数字 for(i = 0;i<num-1;i++) { for(j = i+1;j<num;j++) { if(score[i]>score[j]) { t = score[i]; score[i] = score[j]; score[j] = t; } } }//最小值在第一位,最大值在最后一位 int sum = 0; for(i = 1;i<6;i++) { sum += score[i]; } float result = sum/5.0; printf("%.2f\n",result); } return 0; }