description: You are given a string s of length n consisting of characters a and/or b.
  
  Let \operatorname{AB}(s) be the number of occurrences of string ab in s as a substring. Analogically, \operatorname{BA}(s) is the number of occurrences of ba in s as a substring.
  
  In one step, you can choose any index i and replace s_i with character a or b.
  
  What is the minimum number of steps you need to make to achieve \operatorname{AB}(s) = \operatorname{BA}(s)?
  
  Reminder:
  
  The number of occurrences of string d in s as substring is the number of indices i (1 ≤ i ≤ |s| - |d| + 1) such that substring s_i s_{i + 1} ... s_{i + |d| - 1} is equal to d. For example, \operatorname{AB}(aabbbabaa) = 2 since there are two indices i: i = 2 where aabbbabaa and i = 6 where aabbbabaa.
  
  Input
  
  Each test contains multiple test cases. The first line contains the number of test cases t (1 ≤ t ≤ 1000). Description of the test cases follows.
  
  The first and only line of each test case contains a single string s (1 ≤ |s| ≤ 100, where |s| is the length of the string s), consisting only of characters a and/or b.
  
  Output
  
  For each test case, print the resulting string s with \operatorname{AB}(s) = \operatorname{BA}(s) you'll get making the minimum number of steps.
  
  If there are multiple answers, print any of them.
  
  Example
  
  Input
  
  
  4
  b
  aabbbabaa
  abbb
  abbaab
  
  
  Output
  
  
  b
  aabbbabaa
  bbbb
  abbaaa
  
  Note
  
  In the first test case, both \operatorname{AB}(s) = 0 and \operatorname{BA}(s) = 0 (there are no occurrences of ab (ba) in b), so can leave s untouched.
  
  In the second test case, \operatorname{AB}(s) = 2 and \operatorname{BA}(s) = 2, so you can leave s untouched. 
  
  In the third test case, \operatorname{AB}(s) = 1 and \operatorname{BA}(s) = 0. For example, we can change s_1 to b and make both values zero.
  
  In the fourth test case, \operatorname{AB}(s) = 2 and \operatorname{BA}(s) = 1. For example, we can change s_6 to a and make both values equal to 1.
solution: import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  import java.util.*;
  import java.util.stream.Collectors;
  
  import static java.lang.Math.abs;
  import static java.lang.Math.max;
  import static java.lang.System.currentTimeMillis;
  import static java.lang.System.out;
  import static java.util.Arrays.sort;
  import static java.util.Collections.reverseOrder;
  
  public class A {
      public static final boolean LOCAL = System.getProperty("ONLINE_JUDGE") == null;
      // public static final boolean LOCAL = System.getProperty("LOCAL")!=null;
      public static final String ANSI_RED = "\u001B[31m";
      public static final String ANSI_RESET = "\u001B[0m";
      static final int M = (int) 1e9 + 7;
      static final long MM = (long) M * M;
      static final int MAX = Integer.MAX_VALUE;
      static final int MIN = Integer.MIN_VALUE;
      static final int SIZE = (int) 1e9 * 2;
      static ArrayList<Integer> primes = new ArrayList<>();
      //static Scanner sc = new Scanner(System.in);
      static FastReader sc = new FastReader();
      static long startTime;
      static long endTime;
      static boolean[] prime;
      static int[] visited;
      static ArrayList<ArrayList<Integer>> graph;
      static ArrayList<Integer> topologicalSort;
      static boolean isCyclic = false;
  
      public static int swap(int... args) {
          return args[0];
      }
  
      public static void main(String[] args) throws IOException {
          do {
              startTime = currentTimeMillis();
              //setOut(new PrintStream("output"));
              //setIn(new FileInputStream("input"));
              int T = sc.nextInt();while (T-- != 0)
              {
                  solve();
  
              }
              endTime = currentTimeMillis();
              long duration = endTime - startTime;
              //out.println(duration);
              if (false) {
                  out.println(max(3, 2));
                  Integer[] ARRAY = new Integer[2];
                  ArrayList<Integer> LIST = new ArrayList<>();
                  LIST.add(2);
                  // sort(LIST, reverseOrder());
                  LIST.sort(reverseOrder());
                  sort(ARRAY, reverseOrder());
                  out.println(LIST + " " + Arrays.toString(ARRAY));
              }
          } while (LOCAL);
      }
  
      public static void solve() throws IOException {
  /////////////////////////////////////////////////////////////////////
  
          String str =sc.next();
          int ab=0,ba=0;
          for (int i = 0; i < str.length(); i++) {
              if(str.startsWith("ab", i))ab++;
              if(str.startsWith("ba", i))ba++;
          }
        //  out.println(ab+" " + ba);
          if(ab==ba){
              out.println(str);
          }
          else if(str.length()==2){
              out.println("aa");
          }
          else if(ab>ba){
              if(str.startsWith("ab")){
                  out.println("b"+str.substring(1));
              }
              else if(str.endsWith("ab")){
                  out.println(str.substring(0,str.length()-1)+"a");
              }
              else {
                  out.println(str.substring(0,str.length()-2)+"ba");
              }
          }
          else {
              if(str.startsWith("ba")){
                  out.println("a"+str.substring(1));
              }
              else if(str.endsWith("ba")){
                  out.println(str.substring(0,str.length()-1)+"b");
              }
              else {
                  out.println("ab"+str.substring(2));
              }
          }
  
  ///////////////////////////////////////////////////////////////////////
  
      }
  
      static void dfs(int src) {
          visited[src] = 1;
          for (Integer integer : graph.get(src)) {
              if (visited[integer] != 1) {
                  dfs(integer);
              }
          }
          topologicalSort.add(src);
  
      }
  
      static void detectCycle(int src) {
          visited[src] = 2;
          for (Integer integer : graph.get(src)) {
              if (visited[integer] == 0) {
                  detectCycle(integer);
              } else if (visited[integer] == 2) {
                  isCyclic = true;
                  return;
              }
  
          }
          visited[src] = 1;
      }
  
      static <Array, Target> int count(Array[] array, Target target) {
          int cn = 0;
          for (Array value : array) {
              if (value.equals(target)) cn++;
          }
          return cn;
      }
  
      static int count(String string, char target) {
          int cn = 0;
          for (int i = 0; i < string.length(); i++) {
              if (string.charAt(i) == target) cn++;
          }
          return cn;
      }
  
      static <Array> void revArray(Array[] arr) {
          int n = arr.length;
          for (int i = 0; i < n / 2; i++) {
              Array temp = arr[i];
              arr[i] = arr[n - i - 1];
              arr[n - i - 1] = temp;
          }
  
      }
  
      static <Array> void printArray(Array[] arr) {
          int n = arr.length;
          for (Array array : arr) out.print(array + " ");
          out.println();
      }
  
      static void yes() {
          out.println("YES");
      }
  
      static void no() {
          out.println("NO");
      }
  
      public static boolean isPal(String s) {
          StringBuilder stringBuilder = new StringBuilder(s);
          return s.equals(stringBuilder.reverse().toString());
      }
  
      public static int lowerBound(Integer[] array, int length, int value) {
          int low = -1;
          int hi = length;
          while (low + 1 < hi) {
              int mid = (low + hi) / 2;
              if (array[mid] <= value) {
                  low = mid;
              } else {
                  hi = mid;
              }
          }
          return low;
      }
  
      public static int upperBound(Integer[] array, int length, int value) {
          int low = -1;
          int hi = length;
          while (low + 1 < hi) {
              int mid = (low + hi) >> 1;
              if (array[mid] >= value) {
                  hi = mid;
              } else low = mid;
          }
          return hi;
      }
  
      public static int binarySearch(Integer[] arr, int length, int value) {
          int low = 0;
          int hi = length - 1;
          int ans = -1;
          while (low <= hi) {
              int mid = (low + hi) >> 1;
              if (arr[mid] > value) {
                  hi = mid - 1;
              } else if (arr[mid] < value) {
                  low = mid + 1;
              } else {
                  ans = mid;
                  break;
              }
          }
          return ans;
      }
  
      public static int gcd(int a, int b) {
          return b == 0 ? a : gcd(b, a % b);
      }
  
      public static int lcm(int a, int b) {
          return a / gcd(a, b) * b;
      }
  
      public static int countDivs(int n) {
          int cn = 0;
          int sqr = (int) Math.sqrt(n);
          for (int i = 1; i <= sqr; ++i) {
              if (n % i == 0) {
                  ++cn;
              }
          }
          cn *= 2;
          if (sqr * sqr == n) cn--;
          return cn;
      }
  
      static void prime(int x) {
          //sieve algorithm. nlog(log(n)).
          prime = new boolean[(x + 1)];
          Arrays.fill(prime, true);
          prime[0] = prime[1] = false;
          for (int i = 2; i * i <= x; i++)
              if (prime[i])
                  for (int j = i * i; j <= x; j += i)
                      prime[j] = false;
      }
  
      static boolean isEven(long x) {
          return x % 2 == 0;
      }
  
      static boolean isPrime(long x) {
          boolean flag = true;
          int sqr = (int) Math.sqrt(x);
          if (x < 2) return false;
          for (int i = 2; i <= sqr; i++) {
              if (x % i == 0) {
                  flag = false;
                  break;
              }
          }
          return flag;
      }
  
      static long factorial(long x) {
          long total = 1;
          for (int i = 3; i <= x; i++)
              total = (total * i) % M;
          return total;
      }
  
      static long power(long x, long n) {
          if (n == 0) {
              return 1;
          }
          long pow = power(x, n / 2L);
          if ((n & 1) == 1) {
              return (x * (pow) * (pow));
          }
          return (pow * pow);
      }
  
      private static <T> String ts(T t) {
          if (t == null) {
              return "null";
          }
          try {
              return ts((Iterable) t);
          } catch (ClassCastException e) {
              if (t instanceof int[]) {
                  String s = Arrays.toString((int[]) t);
                  return "{" + s.substring(1, s.length() - 1) + "}";
              } else if (t instanceof long[]) {
                  String s = Arrays.toString((long[]) t);
                  return "{" + s.substring(1, s.length() - 1) + "}";
              } else if (t instanceof char[]) {
                  String s = Arrays.toString((char[]) t);
                  return "{" + s.substring(1, s.length() - 1) + "}";
              } else if (t instanceof double[]) {
                  String s = Arrays.toString((double[]) t);
                  return "{" + s.substring(1, s.length() - 1) + "}";
              } else if (t instanceof boolean[]) {
                  String s = Arrays.toString((boolean[]) t);
                  return "{" + s.substring(1, s.length() - 1) + "}";
              }
              try {
                  return ts((Object[]) t);
              } catch (ClassCastException e1) {
                  return t.toString();
              }
          }
      }
  
      private static <T> String ts(T[] arr) {
          StringBuilder ret = new StringBuilder();
          ret.append("{");
          boolean first = true;
          for (T t : arr) {
              if (!first) {
                  ret.append(", ");
              }
              first = false;
              ret.append(ts(t));
          }
          ret.append("}");
          return ret.toString();
      }
  
      private static <T> String ts(Iterable<T> iter) {
          StringBuilder ret = new StringBuilder();
          ret.append("{");
          boolean first = true;
          for (T t : iter) {
              if (!first) {
                  ret.append(", ");
              }
              first = false;
              ret.append(ts(t));
          }
          ret.append("}");
          return ret.toString();
      }
  
      public static void dbg(Object... o) {
          if (LOCAL) {
              System.err.print("Line #" + Thread.currentThread().getStackTrace()[2].getLineNumber() + ": [");
              for (int i = 0; i < o.length; i++) {
                  if (i != 0) {
                      System.err.print(", ");
                  }
                  System.err.print(ts(o[i]));
              }
              System.err.println("]");
          }
      }
  
      static class FastReader {
          BufferedReader br;
          StringTokenizer st;
  
          public FastReader() {
              br = new BufferedReader(new
                      InputStreamReader(System.in));
          }
  
          String next() {
              while (st == null || !st.hasMoreElements()) {
                  try {
                      st = new StringTokenizer(br.readLine());
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              }
              return st.nextToken();
          }
  
          int nextInt() {
              return Integer.parseInt(next());
          }
  
          long nextLong() {
              return Long.parseLong(next());
          }
  
          double nextDouble() {
              return Double.parseDouble(next());
          }
  
          String nextLine() {
              String str = "";
              try {
                  str = br.readLine();
              } catch (IOException e) {
                  e.printStackTrace();
              }
              return str;
          }
      }
  
      static class Pair implements Comparable<Pair> {
          private final int key;
          private final int value;
  
          public Pair(int key, int value) {
              this.key = key;
              this.value = value;
          }
  
          public int second() {
              return value;
          }
  
          @Override
          public int compareTo(Pair o) {
              int val = -Integer.compare(value, o.value);
              if (val == 0) {
                  return -Integer.compare(key, o.key);
              }
              return val;
          }
  
          @Override
          public String toString() {
              return "Pair{" + "x=" + key + ", y=" + value + '}';
          }
      }
  
  }
  