#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n;
    char ch;
    cin>>n;
    getchar();
    while(n--){
        stack<char>s;
        while(true){
            ch = getchar();
            if(ch==‘ ‘||ch==‘\n‘||ch==EOF){
                while(!s.empty()){
                    cout<<s.top();
                    s.pop();
                } 
                if(ch==‘\n‘||ch==EOF)
                    break;
                cout<<" ";
            }
            else
                s.push(ch);
        }
        cout<<endl;
    }
    return 0;
}