#include <bits/stdc++.h>
using namespace std;
int main(){
    int a[15]={0},m=0,n,d,e=0;
    cin>>n;
    for(m=0;m<n;m++){
    	cin>>a[m];
    	e=e+a[m];
    }
    if(e>100){
    	d=e-100;
    	printf("%.2f",d*0.9+100);
    }else{
    	cout<<e;
    }
    
}
/**************************************************************
	Problem: 1160
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/