#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>pbds;
#define M 1000000007
#define U 998244353
#define N 1000005
typedef long long int ll;
typedef unsigned long long int ull;
#define sz(c) (int)c.size()
#define fr first
#define ll long long
#define sc second
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define all(a) (a).begin(), (a).end()
#define rep(i, a, n) for (ll i = a; i < n; i++)
#define r0 return 0;
#define endl '\n'
#define INF (int)1e15
#define boost	\
ios::sync_with_stdio(0);	\
cin.tie(0);	\
cout.tie(0);
signed main()
{
    boost
    ll n;
    set<ll,greater<ll>>arr;
    cin>>n;
    n++;
    string s1;
    while (n--)
    {
        arr.clear();
        getline(cin,s1);
        for(ll i=0;i<s1.size();i+=2)
        {
            arr.insert(stoll(s1.substr(i,1)));
        }
        for(auto &i:arr)
        {
            cout<<i<<" ";
        }
        cout<<"\n";
    } 
}