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#include <limits.h>
#include <stdio.h>
#include <stdlib.h>

int main() {
    int n, i, c, odd, min_odd, sum;
    
    scanf("%d", &n);
    
    odd = 0;
    sum = 0;
    min_odd = INT_MAX;
    for (i = 0; i < n; i++) {
        scanf("%d", &c);
        if (c & 1) {
            odd = odd + 1;
            if (c < min_odd) {
                min_odd = c;
            }
        }
        sum = sum + c;
    }

    if (odd & 1) {
        sum = sum - min_odd;
    }
    
    if (sum) {
        printf("%d\n", sum);
    } else {
        printf("NIESTETY");
    }
    
    return EXIT_SUCCESS;
}