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#include <cstdio>
#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{
	int n, x, sum, minnp;
	bool nienp;
	
	scanf("%d", &n);
	sum=0;
	minnp=1001;
	nienp=false;
	
	for(int i=0;i<n;i++)
	{
	 scanf("%d", &x);
	 sum=sum+x;
	 
		if(x%2==1)
		{
		 nienp=!nienp;
		 minnp=min(minnp, x);
		}
	}
	
	if(nienp)
		sum=sum-minnp;
			
	if(sum==0)
		printf("NIESTETY\n");
	else
		printf("%d\n", sum);
	
	return 0;
}