1606A.cpp

#include<bits/stdc++.h>
using namespace std;


#define ll long long
#define endl '\n'
#define debug(n) cout<<(n)<<endl;
const ll INF = 2e18 + 99;

int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);

  int t;
  cin>>t;
  while(t--){
    string s;
    cin>>s;
    if(s[0] == s[s.length() - 1]){
      cout<<s<<endl;
    }
    else{
      s[0] = s[s.length() - 1];
      cout<<s<<endl;
    }
  }

}