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#include <stdio.h>

int main(int argc, char *argv[])
{
    int ii, bank, ile, min_odd = 0, sum = 0, ile_odd = 0;
    scanf("%d\n", &ile);
    for (ii = 0; ii < ile; ii ++) {
        scanf("%d", &bank);
        sum += bank;
        if (bank & 1) {
            if ((min_odd == 0) || (min_odd > bank)) {
                min_odd = bank;
            }
            ile_odd++;
        }
    
    }
    if (ile_odd & 1) {
        sum -= min_odd;
    }
    if (sum) {
        printf("%d\n", sum);
    } else {
        printf("NIESTETY\n");
    }
    return 0;
}