#include<iostream>
#include<string>
using namespace std;

void halfHalf(string ch)
	{	
		int size=ch.size();
		for(int i=0;i<size/2;i+=2)
				cout<<ch[i];
				cout<<endl;
	}
int main() {
	// your code goes here
	string name[50];
	int numLine,i(0);
	cin>>numLine;
	while(i<=numLine)
	
	{
		getline(cin,name[i]);
		halfHalf(name[i]);
		i++;
	}
	return 0;
}