#include<cstdio>
#include<iostream>
using namespace std;
int a[14]={0};
int m,n,b,c=0,d=0;
int main(){
	freopen("poker1.in","r",stdin);
	freopen("poker1.out","w",stdout);
	cin>>m;
	for(int i=1;i<=m;i++){
		cin>>n;
		for(int j=1;j<=n;j++){
			cin>>b;
			a[b]+=1;}
		for(int j=1;j<=13;j++){
			if(a[j]>4){
				cout<<"cheat";
				c=1;
				break;}
			if(a[j]<4){
				d+=1;}}
		if(d==13){
			cout<<"no bomb";}
		if(d!=13&&c!=1){
			for(int j=3;j<=13;j++){
				if(a[j]==4){
					cout<<j;
					c=1;
					break;}}
			if(c==0){
				if(a[2]==4){
					cout<<"2";}
				else{
					cout<<"1";}}}
		c=0;
		d=0;
		cout<<endl;
		for(int j=1;j<=13;j++){
			a[j]=0;}}
    return 0;}