Problem: This is the easy version of the problem. The difference is the constraint on the sum of lengths of strings and the number of test cases. You can make hacks only if you solve all versions of this task.

You are given a string s, consisting of lowercase English letters. Find the longest string, t, which satisfies the following conditions: 

  * The length of t does not exceed the length of s. 
  * t is a palindrome. 
  * There exists two strings a and b (possibly empty), such that t = a + b ( "+" represents concatenation), and a is prefix of s while b is suffix of s. 

Input

The input consists of multiple test cases. The first line contains a single integer t (1 ≤ t ≤ 1000), the number of test cases. The next t lines each describe a test case.

Each test case is a non-empty string s, consisting of lowercase English letters.

It is guaranteed that the sum of lengths of strings over all test cases does not exceed 5000.

Output

For each test case, print the longest string which satisfies the conditions described above. If there exists multiple possible solutions, print any of them.

Example

Input


5
a
abcdfdcecba
abbaxyzyx
codeforces
acbba


Output


a
abcdfdcba
xyzyx
c
abba

Note

In the first test, the string s = "a" satisfies all conditions.

In the second test, the string "abcdfdcba" satisfies all conditions, because:

  * Its length is 9, which does not exceed the length of the string s, which equals 11. 
  * It is a palindrome. 
  * "abcdfdcba" = "abcdfdc" + "ba", and "abcdfdc" is a prefix of s while "ba" is a suffix of s. 



It can be proven that there does not exist a longer string which satisfies the conditions.

In the fourth test, the string "c" is correct, because "c" = "c" + "" and a or b can be empty. The other possible solution for this test is "s".

Solution (in JAVA):

Solution:

// Problem : D2. Prefix-Suffix Palindrome (Hard version)
// Contest : Codeforces Global Round 7
// URL : https://codeforces.com/contest/1326/problem/D2
// Memory Limit : 256 MB
// Time Limit : 2000 ms
// Powered by CP Editor (https://github.com/cpeditor/cp-editor)

import java.io.*;
import java.util.*;

public class a {
    public static void main(String[] args) throws IOException {
        FastReader scan = new FastReader();
        //PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("taming.out")));
        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
        Task solver = new Task();
        int t = scan.nextInt();
        //int t = 1;
        for(int i = 1; i <= t; i++) solver.solve(i, scan, out);
        out.close();
       	
    }
    static class Task {
        public void solve(int testNumber, FastReader sc, PrintWriter pw) {
        	String str = sc.nextLine();
        	char[] h1 = str.substring(0,str.length()/2+str.length()%2).toCharArray();
        	char[] h2 = str.substring(str.length()/2).toCharArray();
        	StringBuilder sb = new StringBuilder();
        	int ind = 0;
        	for(int i=0,j=h2.length-1;;i++,j--){
        		if(j<0||h1[i]!=h2[j]){
        			break;
        		}
        		sb.append(h1[i]);
        		ind++;
        	}
        	String after;
        	String after2;
        	if(ind*2>str.length()){
        		after = "";
        		after2 = "";
        	}
        	else{
        	after = str.substring(ind,str.length()-ind);
        	after2 = str.substring(ind,str.length()-ind);
        	}
        	//pw.println(after);
        	//pw.println(after2);
        	after2 = new StringBuilder(after2).reverse().toString();
        	String opt1 = ff(after);
        	String opt2 = ff(after2);
        	//pw.println(opt1);
        	//pw.println(opt2);
        	if(opt1.length()>=opt2.length()){
        		if(sb.length()*2+opt1.length()>str.length()){
        			pw.println(str);
        		}
        		else{
        			pw.println(sb.toString()+opt1+sb.reverse().toString());
        		}
        	}else{
        		if(sb.length()*2+opt2.length()>str.length()){
        			pw.println(str);
        		}
        		else{
        			pw.println(sb.toString()+opt2+sb.reverse().toString());
        		}
        	}
        	
        }
        static String ff(String text)  
    { 
        int N = text.length(); 
        if (N == 0) 
            return ""; 
        N = 2 * N + 1; // Position count 
        int[] L = new int[N + 1]; // LPS Length Array 
        L[0] = 0; 
        L[1] = 1; 
        int C = 1; // centerPosition 
        int R = 2; // centerRightPosition 
        int i = 0; // currentRightPosition 
        int iMirror; // currentLeftPosition 
        int maxLPSLength = 0; 
        int maxLPSCenterPosition = 0; 
        int start = -1; 
        int end = -1; 
        int diff = -1; 
        for (i = 2; i < N; i++)  
        {
            iMirror = 2 * C - i; 
            L[i] = 0; 
            diff = R - i; 
            if (diff > 0) 
                L[i] = Math.min(L[iMirror], diff); 
            while (((i + L[i]) + 1 < N && (i - L[i]) > 0) &&  
                               (((i + L[i] + 1) % 2 == 0) ||  
                         (text.charAt((i + L[i] + 1) / 2) ==  
                          text.charAt((i - L[i] - 1) / 2)))) 
            { 
                L[i]++; 
            } 
  
            if (L[i] > maxLPSLength) // Track maxLPSLength 
            { 
                maxLPSLength = L[i]; 
                maxLPSCenterPosition = i; 
            } 
  		if (i + L[i] > R)  
            { 
                C = i; 
                R = i + L[i]; 
            } 
        }  
    	for(int k=N;k>=0;k--){
       		if(L[k]/2>=k/2){
       			return text.substring(0,L[k]);
       		}
       	}
       	return text.substring(0,2);

    }
    }
    static class tup implements Comparable<tup>{
        int a, b,c;
        tup(){};
        tup(int a, int b, int c){
            this.a=a;
            this.b=b;
            this.c=c;
        }

        @Override
        public int compareTo( tup o2) {
            return o2.b!=b?Integer.compare(o2.b,b):Integer.compare(o2.a,a);
        }
    }
    static void shuffle(long[] a) {
        Random get = new Random();
        for (int i = 0; i < a.length; i++) {
            int r = get.nextInt(a.length);
            long temp = a[i];
            a[i] = a[r];
            a[r] = temp;
        }
    }
    static void shuffle(int[] a) {
        Random get = new Random();
        for (int i = 0; i < a.length; i++) {
            int r = get.nextInt(a.length);
            int temp = a[i];
            a[i] = a[r];
            a[r] = temp;
        }
    }
    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        public FastReader(String s) throws FileNotFoundException {
            br = new BufferedReader(new FileReader(new File(s)));
        }

        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;
        }
    }

}