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#include<cstdio>

main(){
	int n,s=0,c=0,min=9999;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		int a;
		scanf("%d",&a);
		s+=a;
		if(a%2){
			c++;
			if(a<min)min=a;
		}
	}
	if(c%2)s-=min;
	if(!s)printf("NIESTETY\n");
	else printf("%d\n",s);
}