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#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios::sync_with_stdio( 0 );

    int money;
    cin >> money;

    int lowestOdd = 1000000;
    int sumAll = 0;
    for ( int i=0; i<money; ++i )
    {
        int v;
        cin >> v;

        if ( v & 1 )
            lowestOdd = min( lowestOdd, v );

        sumAll += v;
    }

    if ( sumAll & 1 )
    {
        sumAll -= lowestOdd;
    }

    if ( sumAll )
        cout << sumAll << endl;
    else
        cout << "NIESTETY" << endl;

    return 0;
}