题目链接:http://codeforces.com/problemset/problem/59/B
//C++代码
#include<iostream>
using namespace std;
int main(){
int n,m,sum=0,a=101;
cin>>n;
while(n--){
cin>>m;
sum+=m;
if(m&1 && m<a) a=m;
}
if(sum&1) cout<<sum<<endl;
else{
if(a==101) cout<<0<<endl;
else cout<<sum-a<<endl;
}
return 0;
}