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#include<bits/stdc++.h>
#define FOR(i,s,e) for(int i=s;i<=e;i++)
#define FORD(i,s,e) for(int i=s;i>=e;i--)
#define ALL(k) (k).begin(),(k).end()
#define e1 first 
#define e2 second
#define MP make_pair
#define PB push_back 
using namespace std;
typedef long long LL;
typedef pair<int,int> PII;
typedef pair<LL,LL> PLL;
typedef pair<int,PII> PIP;
const int INF=(int)1e9+696969;

main(){
	int n;scanf("%d",&n);
	LL suma=0;
	int minnp=INF;
	FOR(i,1,n){
		int a;scanf("%d",&a);
		suma+=a;
		if(a%2) minnp=min(minnp,a);
	}
	if(suma%2) suma-=minnp;
	printf(suma==0?"NIESTETY\n":"%lld\n",suma);
}