1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
#include <stdio.h>
#include <math.h>

using namespace std;

int main() {
    int n;
    scanf("%d", &n);

    int sum = 0;
    int min_number = 10000;

    for (int i = 0; i < n; ++i) {
        int number;
        scanf("%d", &number);
        if (number % 2 == 1)
            min_number = fmin(min_number, number);
        sum += number;
    }

    if (sum % 2 == 0) {
        printf("%d\n", sum);
    } else {
        int res = sum - min_number;

        if (res % 2 == 0 && n > 1) {
            printf("%d\n", res);
        } else {
            printf("NIESTETY\n");
        }

    }

    return 0;
}