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#include <cstdio>
#include <algorithm>
using namespace std;
int main(){
    int n, minNP = 2000000000, suma = 0, pom;
    scanf("%d", &n);
    for(int i=0; i<n; i++){
        scanf("%d", &pom);
        if(pom % 2)minNP = min(pom, minNP);
        suma += pom;
    }
    if(minNP % 2 == 0){
        printf("%d\n", suma);
        return 0;
    }
    suma -= minNP;
    if(!suma)printf("NIESTETY\n");
    else printf("%d\n", suma);
}