#include<iostream> #include<cstring> void temp(char &a,char &b){ char t=a; a=b; b=t; } using namespace std; int main(){ int c; cin>>c; while(c--){ char a[50]; cin>>a; int i=0,lena=strlen(a),lenahalf=lena/2; while(a[i]!='\0') temp(a[i++],a[i++]); i=0; while(a[i]!='\0') cout<<a[i++]; cout<<endl; } return 0; }