#include<bits/stdc++.h>

using namespace std;
using ll = long long;

int main(){
    int N;cin >> N;
    if(!(1 <= N && N <= 2 * 100000)){
        return 1;
    }
    while(N--){
        string _T, _u, _L;
        cin >> _T >> _u >> _L;
        for(int i = 0;i < _T.size();i++){
            if(_T[i] == '.' && i + 3 != _T.size()){
                return 1;
            }
            if(!(('0' <= _T[i] && _T[i] <= '9') || _T[i] == '.')){
                cout<<_T[i]<<endl;
                return 1;
            }
        }

        for(int i = 0;i < _u.size();i++){
            if(_u[i] == '.' && i + 3 != _u.size()){
                return 1;
            }
            if(!(('0' <= _u[i] && _u[i] <= '9') || _u[i] == '.')){
                return 1;
            }
        }

        for(int i = 0;i < _L.size();i++){
            if(_L[i] == '.' && i + 3 != _L.size()){
                return 1;
            }
            if(!(('0' <= _L[i] && _L[i] <= '9') || _L[i] == '.')){
                return 1;
            }
        }

        if(find(_T.begin(), _T.end(), '.') == _T.end()){
            return 1;
        }
        if(find(_u.begin(), _u.end(), '.') == _u.end()){
            return 1;
        }
        if(find(_L.begin(), _L.end(), '.') == _L.end()){
            return 1;
        }

        _T.erase(find(_T.begin(), _T.end(), '.'));
        _u.erase(find(_u.begin(), _u.end(), '.'));
        _L.erase(find(_L.begin(), _L.end(), '.'));

        ll T = stoi(_T);
        ll u = stoi(_u);
        ll L = stoi(_L);
        if(!(0 < T && T < 10000)){
            return 1;
        }
        if(!(0 < u && u < 10000)){
            return 1;
        }
        if(!(0 < L && L < 100000)){
            return 1;
        }
    }
    return 0;
}