1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
#include <iostream>
using namespace std;

int main() {
	int sum=0, minn=0, n, a;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a;
		sum+=a;
		if(a%2==1 && (minn==0 || a<minn)) minn=a;
	}
	if(sum%2==1) sum-=minn;
	if(sum==0) cout<<"NIESTETY";
	else cout<<sum;
	return 0;
}