#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;
}
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