C

#include <bits/stdc++.h>

using namespace std;

#define ll     long long
#define _test   int _TEST; cin>>_TEST; while(_TEST--)

int main()
{
    _test
    {
        vector<string> s(8);
        for(auto &e: s)     cin>>e;

        string ans = "";

        for(int i=0; i<8; i++)
        {
            for(int j=0; j<8; j++)
            {
                while(i<8 && s[i][j]!='.')
                    ans += s[i++][j];

                if(ans != "")       break;
            }

            if(ans != "");
        }

        cout<<ans<<"\n";
    }
}