#include<iostream>
using namespace std;
int a[14],v[14];
int n,m,x,y,z;
int main(){
	freopen("poker1.in", "r", stdin);  
	freopen("poker1.out", "w", stdout);  
	cin>>n;
	for(int o=1;o<=n;o++){
		cin>>m;
		for(int i=1;i<=m;i++){
			cin>>x;
			a[x]++;
			if(a[x]>4){
				cout<<"cheat"<<endl;
				z=1;
				y=1;
				break;
			}
			if(a[x]==4) v[x]=true;
		}
		if(z==0){
			for(int i=2;i<=13;i++){
				if(v[i]==true){
					cout<<i<<endl;
					y=1;
					break;
				}
				if(v[1]==true){
					cout<<1<<endl;
					y=1;
				}
			}	
		}
		if(y==0) cout<<"no bomb"<<endl;
		y=z=0;
		for(int i=1;i<=13;i++) a[i]=0;
	}
	return 0;
}