#include<cstdio>
using namespace std;
const int check[]={3,4,5,6,7,8,9,10,11,12,13,2,1};
int counter[15];
int main()
{
	freopen("poker1.in","r",stdin);
	freopen("poker1.out","w",stdout);
	int n,m,temp;
	scanf("%d",&m);
	for(int t=1;t<=m;t++)
	{
		for(int i=1;i<=13;i++) counter[i]=0;
		scanf("%d",&n);
		bool ansed=0;
		bool have=0;
		for(int i=1;i<=n;i++)
		{
			scanf("%d",&temp);
			if(ansed) continue;
			if(++counter[temp]>=5){printf("cheat\n");ansed=1;}
			else if(counter[temp]==4) have=1;
		}
		if(!have) printf("no bomb\n");
		else for(int i=0;i<13;i++) if(counter[check[i]]==4)
		{
			printf("%d\n",check[i]);
			break;
		}
	}
	return 0;
}