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#include<bits/stdc++.h>
#define PII pair<int,int>
#define f first
#define s second
#define VI vector<int>
#define LL long long
#define MP make_pair
#define LD long double
#define PB push_back
#define ALL(V) V.begin(),V.end()
#define abs(x) max((x),-(x))
#define PDD pair<LD,LD> 
#define VPII vector< PII > 
#define siz(V) ((int)V.size())
#define FOR(x, b, e)  for(int x=b;x<=(e);x++)
#define FORD(x, b, e) for(int x=b;x>=(e);x--)
#define REP(x, n)     for(int x=0;x<(n);x++)
#define mini(a,b) a=min(a,b)
#define maxi(a,b) a=max(a,b)
using namespace std;
int n,a,sum,np,minp=1e9;
main()
{
scanf("%d",&n);
FOR(i,1,n)
	{
	scanf("%d",&a);
	sum+=a;
	if(a%2)
		{
		np++;
		mini(minp,a);
		}
	}
if(n==1 && np==1)
	{
	puts("NIESTETY");
	return 0;
	}
printf("%d\n",sum-((np%2)?minp:0));
}