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

}

/**************************************************************
	Problem: 1218
	User: mc002
	Language: C++
	Result: Wrong Answer
****************************************************************/