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#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <vector>
#include <cmath>
#include <cstring>
#include <string>
#include <iostream>
#include <complex>
#include <sstream>
#include <cassert>
using namespace std;
 
typedef long long LL;
typedef unsigned long long ULL;
typedef long double LD;
typedef vector<int> VI;
typedef pair<int,int> PII;
 
#define REP(i,n) for(int i=0;i<(n);++i)
#define SIZE(c) ((int)((c).size()))
#define FOR(i,a,b) for (int i=(a); i<(b); ++i)
#define FOREACH(i,x) for (__typeof((x).begin()) i=(x).begin(); i!=(x).end(); ++i)
#define FORD(i,a,b) for (int i=(a)-1; i>=(b); --i)
#define ALL(v) (v).begin(), (v).end()
 
#define pb push_back
#define mp make_pair
#define st first
#define nd second

int main() {
  int N;
  scanf("%d", &N);
  int S = 0, minodd = 1001;
  REP(i,N) {
    int a;
    scanf("%d", &a);
    S += a;
    if (a % 2) minodd = min(minodd, a);
  }
  if (S % 2 && N == 1) {
    printf("NIESTETY\n");
  } else if (S % 2) {
    printf("%d\n", S - minodd);
  } else {
    printf("%d\n", S);
  }
}