#include <bits/stdc++.h>
using namespace std;

void solve() {
int n;
cin >> n;
map<int,int> nums;
for(int i=0;i<2*n;i++){
int x;
cin >> x;
nums[x]++;
}
int tot = 0;
for(auto [a,b] : nums) {
tot += b-1;
}
if(tot<=n-1)cout << "Kevin\n";
else cout << "Qingqu\n";
}

int main () {
ios::sync_with_stdio(0);
cin.tie(0);
int tc;
cin >> tc;
while(tc--)
solve();
}