#include<cstdio>
#include<cstring>
using namespace std;
int a[14];
int main()
{
 freopen("poker1.in","r",stdin);
 freopen("poker1.out","w",stdout);
 int m;
 scanf("%d",&m);
 for(int i=1;i<=m;i++)
    {int n,k;
     k=0;
     scanf("%d",&n);
     memset(a,0,sizeof(a));
     for(int j=1;j<=n;j++)
        {int x;
         scanf("%d",&x);
         a[x]++;
         if(a[x]==4)
           {k=1;
           }
         if(a[x]>4)
           {k=2;
            printf("cheat\n");
		   }
	    }
	 if(k==0)
	   printf("no bomb\n");
	 if(k==1)
	   {for(int i=3;i<=13;i++)
	       {if(a[i]==4)
	          {printf("%d\n",i);
	           k=0;
	           break;
			  }
		   }
		if(k==1)
		  {if(a[2]==4)
	         printf("2\n");
	       else printf("1\n");
		  }		    
	   }
    }
 return 0;
}