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#include <iostream>
#include <stdio.h>

using namespace std;

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