#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include <cmath>
#include <algorithm>
#include <ctime>
#include <vector>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <functional>
#include <numeric>

#define f first
#define s second
#define ll long long
#define mp make_pair
#define pb push_back
#define pii pair < int, int >
#define pll pair < long long, long long >
#define forit(it,S) for(typeof(S.begin()) it = S.begin(); it!= S.end(); it++)

using namespace std;
int const maxn = (int)2e2 + 111;
int const inf = (1<<30) - 1;

int n;
int a[maxn];
int cc;
int used[maxn], mt[maxn];
bool vis[maxn];
vector < int > g[maxn];
vector < int > gr[maxn];

bool try_kuhn(int v){
	if ( used[v] == cc ) return false;
	used[v] = cc;
	for (int i=0;i<g[v].size();i++){
		int to = g[v][i];
		if ( vis[to] ) continue;
		if ( mt[to] == -1 || try_kuhn(mt[to]) ){
			mt[to] = v;
			return true;
		}
	}
	return false;
}

int match(int x){
	memset(mt, -1, sizeof(mt));
	memset(used, 0, sizeof(used));
	int ans = 0;
	cc = 1;
	for (int i=0;i<n;i++){
		if ( vis[i] ) continue;
		cc++;
		ans += try_kuhn(i);
	}
	return x - ans;
}

void Solve(){
	scanf("%d", &n);
	for (int i=0;i<n;i++){
		scanf("%d", a + i);
	}

	sort(a, a + n);

	n = unique(a, a + n) - a;

	for (int i=0;i<n;i++){
		g[i].clear();
		for (int j=i+1;j<n;j++){
			if ( a[j]%a[i] == 0){
				g[i].pb(j);
			}
		}
	}

	memset(vis, 0, sizeof(vis));
	int matching = match(n);
	set < int > S;

	for (int i=0;i<n;i++){
		memset(vis, 0, sizeof(vis));

		for (int j=0;j<n;j++){
			if ( a[i]%a[j] == 0 || a[j]%a[i] == 0) vis[j] = true;
		}
		int t = accumulate(vis, vis + n, 0);

		if ( match(n-t) == matching-1 ){
			S.insert(a[i]);
			if ( (int)S.size() == matching )break;
		}

	}

	forit(it, S){
		int x = *it;
		cout <<" "<<x;
	}
	cout <<endl;


}

int main (){
	#ifdef LOCAL
    freopen ("input.txt", "r", stdin);
    freopen ("output.txt", "w", stdout);
    #endif

    int tests;
    scanf("%d", &tests);

    for (int i=0;i<tests;i++){
    	printf("Case %d:", i + 1);
    	Solve();
    }











    return 0;
}