#include <iostream>
#include <cstring>
using namespace std;

int T, N;
int arr[1001];
int cnt[1001];
int maxcount;
int main() {
	cin >> T;

	for (int i = 1; i <= T; ++i) {
		cin >> N;
		maxcount = 0;
		memset(cnt, 0, sizeof(cnt));
		for (int j = 1; j <= 1000; ++j) {
			cin >> arr[j];
			cnt[arr[j]]++;
			if (cnt[arr[j]] > cnt[maxcount]) maxcount = arr[j];
			else if (cnt[arr[j]] == cnt[maxcount]) maxcount = arr[j] > maxcount ? arr[j] : maxcount;
		}

		cout << "#" << i << " " << maxcount << "\n";
	}

}