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#include<bits/stdc++.h>
using namespace std;
int main() {
	int n;
	scanf("%d", &n);
	int t[n], ln = 0, mn = 2000, w = 0;
	for(int i = 0; i < n; i++){ scanf("%d", &t[i]); if(t[i]%2==1){ mn = min(mn, t[i]); ln++;} w+=t[i];}
	if(ln==n and n==1){ printf("NIESTETY\n"); return 0;}
	if(ln%2==1) w-=mn;
	printf("%d\n", w);
}