#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	double x=0,x1=0,z=0,s=0;
	cin>>n;
	int a[n];
	for(int i=0;i<n;i++){
		cin>>a[i]; 
		z+=a[i];
	}
	x=a[0];
	for(int j=1;j<n;j++){
		if(a[j]<x){
			x=a[j];
		}
	}
	for(int y=0;y<n;y++){
		if(a[y]==x){
			x1+=a[y];
			s+=1;
		}
	}
	z-=x1;
	z=z/(n-s);
	printf("%.1f",z);
}

/**************************************************************
	Problem: 1218
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2076 kb
****************************************************************/