#include <cmath>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
using namespace std;
int n,m,k;
int yes[14];
int yess=0;
int c[14];
int main()
{
	freopen("poker1.in","w",stdin);
	freopen("poker1.out","r",stdout);
	cin>>k;
	for(int j=1;j<=k;j++)
	{
		yess=0;
		memset(yes,0,sizeof(yes));
		memset(c,0,sizeof(c));
		cin>>n;
		for(int i=1;i<=n;i++)
		{
			cin>>m;
			c[m]++;
			if(c[m]>4)
			{
				cout<<"cheat"<<endl;
				goto k1;
			}
		}
		for(int i=1;i<=13;i++)
		{
			if(c[i]==4)
			{
				yes[i]=1;
			}
		}
		for(int i=3;i<=13;i++)
		{
			if(yess==1) goto k2;
			if(yes[i]==1)
			{
				cout<<i<<endl;
				yess=1;
				goto k1;
			}
		}
		for(int i=1;i<=2;i++)
		{
			if(yess==1) goto k2;
			if(yes[i]==1)
			{
				cout<<i<<endl;
				yess=1;
				goto k1;
			}
		}
		k2:	if(yess==0) cout<<"no bomb"<<endl;
		k1:;
	}
}