#include <bits/stdc++.h> using namespace std; int main() { int i,j,n; char a[50],temp; cin>>n; while (n--) { cin>>a; i=0; j=1; while (i<strlen(a)) { temp=a[i]; a[i]=a[j]; a[j]=temp; i=i+2; j=j+2; } cout<<a<<endl; } return 0; }