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#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a); i<(b); ++i)
//#define REP(i,n) FOR(i,1,(n)+1)
typedef vector<int> vi;
#define pb push_back
#define sz size()
typedef pair<int,int> pii;
#define mp make_pair
#define st first
#define nd second
typedef long long ll;
#define INF 1000000001
//#define VAR(n,v) typeof(v) n=(v)
#define ALL(t) t.begin(),t.end()
#define SC(a) scanf("%d", &a)
#define GET(a) int a; SC(a)

#define ISDEBUG 1
#define dprintf(...) if(ISDEBUG) \
{printf("\033[31m"); printf(__VA_ARGS__); printf("\033[0m");}
template <class It> void dptab(It b, It e, const char* f="%d ") {
	if(ISDEBUG) {
		for(It it=b; it!=e; ++it) dprintf(f, *it); dprintf("\n");
}}

int main() {
	GET(n);
	int sum = 0;
	int smallest_even = INF;
	while (n--) {
		GET(x);
		sum += x;
		if (x % 2 && x < smallest_even) {
			smallest_even = x;
		}
	}

	if (sum % 2) {
		sum -= smallest_even;
	}

	if (sum) {
		printf("%d\n", sum);
	} else {
		printf("NIESTETY\n");
	}
	return 0;
}