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#include <cstdio>

int main() {
    unsigned n;
    scanf("%u", &n);
    unsigned value, valueMin = 999, total = 0;
    while (n--) {
        scanf("%u", &value);
        if (value & 1 && valueMin > value)
            valueMin = value;
        total += value;
    }
    if (total & 1)
        total -= valueMin;
    if (total)
        printf("%u\n", total);
    else
        printf("NIESTETY\n");
    return 0;
}