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

using namespace std;

const int max_a = 1000;

int main(int argc, char *argv[])
{
    int n, pom;
    int suma = 0;
    int min_niep = max_a + 1;
    
    scanf("%d", &n);
    
    for (int i = 0; i < n ; i++) {
        scanf("%d", &pom);
        suma += pom;
        if (pom % 2 == 1 & pom < min_niep) min_niep = pom;
    }
    
    if (suma % 2 == 0) {
        printf("%d", suma);      
        return 0;
    } 
    
    if (suma - min_niep != 0) {
        printf("%d", suma - min_niep);      
        return 0;    
    } 
    
    printf("NIESTETY");
    return 0;
}