#include <iostream>
#include <vector>
using namespace std;
vector <int> V;
int N, sum = 0;
void Check()
{
int minV = 0;
for(int i = 0; i < N; i++)
{
if(V[i] %2 != 0)
{
minV = V[i];
break;
}
}
for(int i = 1; i < N; i++)
if(minV > V[i] && V[i] % 2 != 0)
minV = V[i];
int maxV = 0;
for(int i = 0; i < N; i++)
{
if(V[i] %2 == 0)
{
maxV = V[i];
break;
}
}
for(int i = 1; i < N; i++)
if(maxV < V[i] && V[i] % 2 == 0)
maxV = V[i];
if(minV != 0 && sum - minV > maxV)
cout << sum - minV << endl;
else if(maxV != 0)
cout << maxV << endl;
else cout << "NIESTETY" << endl;
}
int main()
{
std::ios_base::sync_with_stdio(false);
int a = 0;
cin >> N;
for(int i = 0; i < N; i++)
{
cin >> a;
sum += a;
V.push_back(a);
}
if(sum % 2 == 0)
cout << sum << endl;
else Check();
return 0;
}