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#include <bits/stdc++.h>

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

    int ile_NP = 0, ile_P = 0, suma_P = 0, suma_NP = 0, min_NP = INT_MAX;
    for(int i = 0; i < n; ++i)
    {
        int x;
        scanf("%d", &x);
        if(x % 2 == 0)
        {
            ++ile_P;
            suma_P += x;
        }
        else
        {
            ++ile_NP;
            suma_NP += x;
            min_NP = std::min(min_NP, x);
        }
    }

    if(ile_NP % 2 == 0)
        printf("%d", suma_P + suma_NP);
    else
    {
        int wyn = suma_NP - min_NP + suma_P;
        wyn == 0 ? puts("NIESTETY") : printf("%d", wyn);
    }
}