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#include <cstdio>
#include <cstdlib>
#include <algorithm>

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

    int minNp = +999999999, sum = 0;
    while(n--) {
        int a;
        scanf("%d", &a);
        sum += a;
        if (a&1) {
            minNp = std::min(minNp, a);
        }
    }

    int result =  sum&1 ? sum - minNp : sum;
    if (result > 0)
        printf("%d\n", result);
    else
        printf("NIESTETY\n");

    return 0;
}