#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int N,M;
int a[14];
int card;
bool flag;
int main()
{
    freopen("poker1.in","r",stdin);
    freopen("poker1.out","w",stdout);
    scanf("%d",&M);
    while(M--)
    {
        for(int i=1;i<=13;i++)  a[i]=0;
        scanf("%d",&N);
        for(int i=1;i<=N;i++)
        {
            scanf("%d",&card);
            a[card]++;
        }
        flag=0;
        for(int i=3;i<=13;i++)
        {
            if(a[i]>4)
            {
                printf("cheat\n");
                flag=1;
                break;
            }
            if(a[i]==4)
            {
                printf("%d\n",i);
                flag=1;
                break;
            }
        }
        for(int i=2;i>=1;i--)
        {
            if(flag)  break;
            if(a[i]>4)
            {
                printf("cheat\n");
                flag=1;
                break;
            }
            if(a[i]==4)
            {
                printf("%d\n",i);
                flag=1;
                break;
            }
        }
        if(!flag)  printf("no bomb\n");
    }
    return 0;
}