#include <stdio.h> int main() { int arr[7]; while(~scanf("%d ",&arr[0])) { int max = -1; int min = 101; int sum = 0; for(int i = 1; i < 7; i++) scanf("%d ",&arr[i]); for(int i = 0; i < 7; i++) { if(arr[i] > max) max = arr[i]; if(arr[i] < min) min = arr[i]; sum+=arr[i]; } printf("%.2lf\n",(sum-max-min)/5.0); } return 0; }