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#include <iostream>
using namespace std;

int main()
{
int n;
cin >> n;
int a=0;
int b=0;
int minbanknot=1002;
for(int i=0; i<n; i++)
    {
    cin >> a;
    b+=a;
    if (a<minbanknot && (a%2==1))
    minbanknot=a;
    }
if (b%2==0)
    {
    cout << b;
    return 0;
    }
else
    {
    b-=minbanknot;
    if (b%2==0 && b>0)
        {
        cout << b;
        return 0;
        }
    }
cout << "NIESTETY";
return 0;



}