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#include <stdio.h>

int main (void){
	int n,nominal,min=1000,suma=0;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
		scanf("%d",&nominal);
		if((n==1)&&(nominal%2!=0)) suma=0;
		else{
			if((nominal%2!=0)&&(nominal<min))min=nominal;
			suma+=nominal;
			}
		}
	if(suma==0){printf("NIESTETY\n");
		return 0;
		}
	if(suma%2!=0) suma-=min;
	printf("%d\n",suma);
	return 0;
	}