#include<bits/stdc++.h>
using namespace std;
int a[100];
int main(){
	freopen("poker1.in","r",stdin);
	freopen("poker1.out","w",stdout);
    int t;
    scanf("%d",&t);
    while(t--){
        memset(a,0,sizeof(a));
        int n;
        int flag=0;
        scanf("%d",&n);
        for(int i=1;i<=n;i++){
            int x;
            scanf("%d",&x);
            a[x]++;
            if(a[x]>4) flag=1;
        }
        if(flag) {
            printf("cheat\n");
            continue;
        }
        for(int i=3;i<=20;i++){
            if(a[i]==4){
                printf("%d\n",i);
                flag=1;
                break;
            }
        }
        if(flag) continue;
        for(int i=2;i>=1;i--){
            if(a[i]==4){
                printf("%d\n",i);
                flag=1;
                break;
            }
        }
        if(flag) continue;
        printf("no bomb\n");
    }
    return 0;
}