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#ifdef _MSC_VER
#define _CRT_SECURE_NO_WARNINGS
#endif

#include <iostream>
#include <cstdio>

int main()
{
    int minOdd = 1001;
    int oddCount = 0;
    int total = 0;

    int n;
    scanf("%d", &n);
    
    for (int i = 0; i < n; i++)
    {
        int val;
        scanf("%d", &val);
        total += val;
        if (val % 2 == 1)
        {
            minOdd = minOdd > val ? val : minOdd;
            oddCount++;
        }
    }

    if (n == 1 && oddCount == 1)
    {
        printf("NIESTETY\n");
    }
    else
    {
        printf("%d\n", (oddCount % 2 == 1) ? total - minOdd : total);
    }

    return 0;
}