#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>
using namespace std;
int n,m;
int a[25],cnt[25];
int main()
{
	freopen("poker1.in","r",stdin);
	freopen("poker1.out","w",stdout);
	scanf("%d",&m);
	while(m--){
		scanf("%d",&n);
		memset(cnt,0,sizeof(cnt));
		int tmp1 = 0,tmp2 = 0,tmp3 = 0;
		
		for(int i = 1; i <= n; i++){
			scanf("%d",&a[i]);
			cnt[a[i]] ++;
			if(cnt[a[i]] > 4) tmp1 = 1;
		}
		if(tmp1 == 1) {printf("cheat\n");continue;}
		for(int i = 3; i <= 13; i++)  if(cnt[i] == 4) {printf("%d\n",i);tmp2 = 1;tmp3 = 1;break;}
		if(tmp3) continue;
		if(cnt[2] == 4) {printf("2\n");continue;}
		if(cnt[1] == 4) {printf("1\n");continue;}
		if(!tmp2) {printf("no bomb\n");continue;}
	}
	return 0;
}