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//Szymon Wozniak
#include <cstdio>

typedef long long ll;


int main()
{
	ll n,minodd = 2001;
	ll a;
	ll res = 0;
	scanf("%lld", &n);
	
	for(ll i = 0; i < n; i++)
	{
		scanf("%lld", &a);
		res += a;
		
		if( a%2 == 1 && a < minodd)
		{
			minodd = a;
		}
	}

	if(minodd == 2001 || res % 2 == 0) minodd = 0;

	res -= minodd;

	if(res > 0)
		printf("%lld\n", res);
	else
		printf("NIESTETY\n");

	return 0;
}