#include<bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,n) for(int i=0;i<(n);i++)
#define REP(i,a,b) for(int i=(a);i<(b);i++)
#define pb push_back
#define all(v) (v).begin(),(v).end()
typedef vector<int>vi;

const int INF=1001001001001001001ll;
int comb[3000][3000];
signed main(){
    comb[0][0]=1;
    for(int i=1;i<3000;i++){
        comb[i][0]=comb[i][i]=1;
        for(int j=1;j<i;j++){
            comb[i][j]=min(INF,comb[i-1][j]+comb[i-1][j-1]);
        }
    }


    int Q;cin>>Q;
    while(Q--){
        int d,x,t;
        cin>>d>>x>>t;
        if(comb[x+d-1][d-1]>t)cout<<"ZETUBOU"<<endl;
        else cout<<"AC"<<endl;
    }
    return 0;
}