#include <bits/stdc++.h>
using namespace std;
int main()
{ int n, a[100];
    cin >> n;
    for(int i=0; i<n; i++) 
	cin >> a[i];
    
    int min=a[0];
    for(int i=1; i<n; i++) 
        if(a[i]<min) min=a[i];
    
    float sum=0, b=0;
    for(int i=0;i<n;i++)
        if(a[i]!=min) {
            sum+=a[i];
            b++;
        }
    sum=sum/b;
    
    if(b==0) 
	cout<<"0.0";
	else
    printf("%.1f",sum);
	



return 0;
}

/**************************************************************
	Problem: 1218
	User: sf751616
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/