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#include <stdio.h>
#include <iostream>

using namespace std;

#define REP(x, n) for(int x = 0; x < (n); ++x)


int main() {
  int n, a, s=0, m=1001;

  cin>>n;

  REP(i,n){
    scanf("%d",&a);
    s+=a;
    if (a<m && (a%2)==1) m=a;
  }

  if ((s%2)==1) s-=m;
  if (s) cout<<s<<endl;
  else cout<<"NIESTETY\n";

  return 0;
}