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#include <cstdio>

int main(int argc, char const *argv[])
{
	int n, tmp, sum{0}, minOdd{1001};
	scanf("%d", &n);

	while(n--)
	{
		scanf("%d", &tmp);
		sum+=tmp;
		if( tmp&1 && minOdd>tmp )
			minOdd=tmp;
	}

	if( sum==tmp && tmp&1 )
		printf("NIESTETY\n");
	else
		printf("%d\n", (sum&1 ? sum-tmp : sum));
	
	return 0;
}