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#include<iostream>
#include<math.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(false);
int a,b,n,sum,wyn;
cin>>n;
b=2000;
wyn=0;
sum=0;
for(int kek=0; kek<n; kek++){
cin>>a;
if(a%2==0){
wyn=wyn+a;           
}
else{
b=min(a,b);
sum=sum+a;
}
}
if(sum%2==0){wyn=wyn+sum;}
else{wyn=wyn+sum-b;}
if(wyn>0){cout<<wyn;}
else{cout<<"NIESTETY";}
return 0;
}