You are given an array a of length n consisting of integers. You can apply the following operation, consisting of several steps, on the array a zero or more times: 

  * you select two different numbers in the array a_i and a_j; 
  * you remove i-th and j-th elements from the array. 



For example, if n=6 and a=[1, 6, 1, 1, 4, 4], then you can perform the following sequence of operations: 

  * select i=1, j=5. The array a becomes equal to [6, 1, 1, 4]; 
  * select i=1, j=2. The array a becomes equal to [1, 4]. 



What can be the minimum size of the array after applying some sequence of operations to it?

Input

The first line contains a single integer t (1 ≤ t ≤ 10^4). Then t test cases follow.

The first line of each test case contains a single integer n (1 ≤ n ≤ 2 ⋅ 10^5) is length of the array a.

The second line of each test case contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 10^9).

It is guaranteed that the sum of n over all test cases does not exceed 2 ⋅ 10^5.

Output

For each test case, output the minimum possible size of the array after applying some sequence of operations to it.

Example

Input


5
6
1 6 1 1 4 4
2
1 2
2
1 1
5
4 5 4 5 4
6
2 3 2 1 3 1


Output


0
0
2
1
0

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

public class A {

	static class pair implements Comparable<pair> {

		int f;
		int s;

		public pair() {

		}

		public pair(int a, int b) {
			f = a;
			s = b;

		}

		@Override
		public int compareTo(pair o) {
			// TODO Auto-generated method stub
			return this.s - o.s;
		}

	}

	static int mod = 998244353;
	static int ar[];
	static Scanner sc = new Scanner(System.in);
	static StringBuilder out = new StringBuilder();
	static ArrayList<Integer> gr[] = new ArrayList[100000];

	static void buildGraph(int n, int m) throws IOException {

		gr = new ArrayList[n];

		for (int i = 0; i < n; i++) {

			gr[i] = new ArrayList<>();

		}

		for (int i = 0; i < m; i++) {
			int u = sc.nextInt();
			int v = sc.nextInt();

			u--;
			v--;
			gr[u].add(v);
			gr[v].add(u);
		}

	}

	static void sort(int a[], int n) {

		ArrayList<Integer> al = new ArrayList<>();

		for (int i = 0; i < n; i++) {

			al.add(a[i]);
		}

		Collections.sort(al);

		for (int i = 0; i < n; i++) {

			a[i] = al.get(i);
		}
	}

	static void sort(long a[], int n) {

		ArrayList<Long> al = new ArrayList<>();

		for (int i = 0; i < n; i++) {

			al.add(a[i]);
		}

		Collections.sort(al);

		for (int i = 0; i < n; i++) {

			a[i] = al.get(i);
		}
	}

	static long[] inl(int n) throws IOException {

		long a[] = new long[n];
		for (int i = 0; i < n; i++)
			a[i] = sc.nextInt();
		return a;
	}

	static void pla() {

		int a = 0;
		int b = 2;
		int c = 0;
		int d = 0;

		a = (int) Math.pow(2, 32);

		c = a + b;
		b = c / a;
		d = a + b + c;

	}

	static int[] in(int n) throws IOException {

		int a[] = new int[n];
		for (int i = 0; i < n; i++)
			a[i] = sc.nextInt();
		return a;
	}

	public static void main(String[] args) throws IOException {

		// sieve();
		int t = sc.nextInt();
		while (t-- > 0) {

			A run = new A();
			run.run();

		}

		System.out.println(out);
	}

	public void run() throws IOException {

		int n = sc.nextInt();
		long a[] = inl(n);
		HashMap<Long, Integer> hm = new HashMap<>();
		long max = 0;
		int ans = n % 2;
		for (int i = 0; i < n; i++) {

			long val = a[i];
			hm.put(val, hm.getOrDefault(val, 0) + 1);
			max = Math.max(hm.get(val), max);
		}
		
		boolean b = false;
		if (n % 2 == 1) {
			n--;
			b = true;
		}
		pla();
		
		if (max > n / 2) {
			ans += 2 * (max - n / 2);
			if (b)
				ans -= 2;
		}
		out.append(ans);
		out.append("\n");

	}

	static boolean solve(String a, String b) {
		int n = a.length(), m = b.length();
		for (int i = 0; i <= m - n; i++) {
			if (b.substring(i, i + n).equals(a))
				return true;
		}
		return false;
	}

// static Reader sc = new Reader();

	static class Reader {
		final private int BUFFER_SIZE = 1 << 16;
		private DataInputStream din;
		private byte[] buffer;
		private int bufferPointer, bytesRead;

		public Reader() {
			din = new DataInputStream(System.in);
			buffer = new byte[BUFFER_SIZE];
			bufferPointer = bytesRead = 0;
		}

		public Reader(String file_name) throws IOException {
			din = new DataInputStream(new FileInputStream(file_name));
			buffer = new byte[BUFFER_SIZE];
			bufferPointer = bytesRead = 0;
		}

		public String readLine() throws IOException {
			byte[] buf = new byte[64]; // line length
			int cnt = 0, c;
			while ((c = read()) != -1) {
				if (c == '\n')
					break;
				buf[cnt++] = (byte) c;
			}
			return new String(buf, 0, cnt);
		}

		public int nextInt() throws IOException {
			int ret = 0;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();
			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');

			if (neg)
				return -ret;
			return ret;
		}

		public long nextLong() throws IOException {
			long ret = 0;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();
			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');
			if (neg)
				return -ret;
			return ret;
		}

		public double nextDouble() throws IOException {
			double ret = 0, div = 1;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();

			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');

			if (c == '.') {
				while ((c = read()) >= '0' && c <= '9') {
					ret += (c - '0') / (div *= 10);
				}
			}

			if (neg)
				return -ret;
			return ret;
		}

		private void fillBuffer() throws IOException {
			bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
			if (bytesRead == -1)
				buffer[0] = -1;
		}

		private byte read() throws IOException {
			if (bufferPointer == bytesRead)
				fillBuffer();
			return buffer[bufferPointer++];
		}

		public void close() throws IOException {
			if (din == null)
				return;
			din.close();
		}
	}

}
