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#include <iostream>

using namespace std;

int main(){
	long long n,s=0,m=1005,a;
	cin>>n;
	if(n==1){
		cin>>a;
		if(a%2==1)
			cout<<"NIESTETY";
		else
			cout<<a;
		return 0;
	}
	while(n--){
		cin>>a;
		s+=a;
		if(a%2==1)
			if(a<m)
				m=a;
	}
	if(s%2==1)
		s-=m;
	cout<<s;
		
	
	
	
	return 0;
}