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#include<cstdio>

int il,m,sum,x;

int main()
{
	int m=1000000;
	scanf("%d",&il);
	for(int i=0;i<il;i++)
	{
		scanf("%d",&x);
		if(x<m&&x%2==1)m=x;
		sum+=x;
	}
	if(sum%2==0)printf("%d",sum);
	else if(sum==m)printf("NIESTETY");
	else printf("%d",sum-m);
}