#include<fstream>
using namespace std;
ifstream cin("poker1.in");
ofstream cout("poker1.out");
int m;
int main()
{
    cin>>m;
    while(m--)
    {
    	int n;
    	cin>>n;
    	int poker[14]={0};
    	for(int i=1;i<=n;i++)
    	{
    		int card;
    		cin>>card;
    		poker[card]++;
    	}
    	for(int i=1;i<=13;i++)
    	{
    		if(poker[i]>4)
    		{
    			cout<<"cheat"<<endl;
    			goto end;
    		}
    	}
    	for(int i=3;i<=13;i++)
    	{
    		if(poker[i]==4)
    		{
    			cout<<i<<endl;
    			goto end;
    		}
    	}
    	for(int i=2;i>=1;i--)
    	{
    		if(poker[i]==4)
    		{
    			cout<<i<<endl;
    			goto end;
    		}
    	}
    	cout<<"no bomb"<<endl;
    	end:
    	continue;
    }
    cin.close();
    cout.close();
    return 0;
}