Monocarp is the coach of the Berland State University programming teams. He decided to compose a problemset for a training session for his teams.

Monocarp has n problems that none of his students have seen yet. The i-th problem has a topic a_i (an integer from 1 to n) and a difficulty b_i (an integer from 1 to n). All problems are different, that is, there are no two tasks that have the same topic and difficulty at the same time.

Monocarp decided to select exactly 3 problems from n problems for the problemset. The problems should satisfy at least one of two conditions (possibly, both):

  * the topics of all three selected problems are different; 
  * the difficulties of all three selected problems are different. 



Your task is to determine the number of ways to select three problems for the problemset.

Input

The first line contains a single integer t (1 ≤ t ≤ 50000) — the number of testcases.

The first line of each testcase contains an integer n (3 ≤ n ≤ 2 ⋅ 10^5) — the number of problems that Monocarp have.

In the i-th of the following n lines, there are two integers a_i and b_i (1 ≤ a_i, b_i ≤ n) — the topic and the difficulty of the i-th problem.

It is guaranteed that there are no two problems that have the same topic and difficulty at the same time.

The sum of n over all testcases doesn't exceed 2 ⋅ 10^5.

Output

Print the number of ways to select three training problems that meet either of the requirements described in the statement.

Example

Input


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


Output


3
10

Note

In the first example, you can take the following sets of three problems:

  * problems 1, 2, 4; 
  * problems 1, 3, 4; 
  * problems 2, 3, 4. 



Thus, the number of ways is equal to three.
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                 / \\|||  :  |||// \
                / _||||| -:- |||||- \
               |   | \\\  -  /// |   |
               | \_|  ''\---/''  |_/ |
               \  .-\__  '-'  ___/-. /
             ___'. .'  /--.--\  `. .'___
          ."" '<  `.___\_<|>_/___.' >' "".
         | | :  `- \`.;`\ _ /`;.`/ - ` : | |
         \  \ `_.   \_ __\ /__ _/   .-` /  /
     =====`-.____`.___ \_____/___.-`___.-'=====
                       `=---='
 
*/

import java.util.*;
import java.math.*;
import java.io.*;
import java.lang.Math.*;

public class KickStart2020 {
	 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());
		}

		float nextFloat() {
			return Float.parseFloat(next());
		}

		String nextLine() {
			String str = "";
			try {
				str = br.readLine();
			} catch (IOException e) {
				e.printStackTrace();
			}
			return str;
		}
	}

	static long gcd(long a, long b) {
		if (b == 0)
			return a;
		return gcd(b, a % b);

	}

	static long lcm(long a, long b) {
		return a / gcd(a, b) * b;
	}

	public static class Pair implements Comparable<Pair> {
		public int index;
		public int value;

		public Pair(int index, int value) {
			this.index = index;
			this.value = value;
		}

		@Override
		public int compareTo(Pair other) {
			// multiplied to -1 as the author need descending sort order
			if(other.index < this.index) return 1;
			if(other.index > this.index) return -1;
			else return 0;
		}
		@Override
		public String toString() {
			return this.index + " " + this.value;
		}
	}
	static boolean isPrime(long d) {
		if (d == 1)
			return false;
		for (int i = 2; i <= (long) Math.sqrt(d); i++) {
			if (d % i == 0)
				return false;
		}
		return true;
	}

	static void decimalTob(int n, int k, Stack<Integer> ss) {
          int x = n % k;
          int y = n / k;
          ss.push(x);
          if(y > 0) {
        	   decimalTob(y, k, ss);
          }
	}

	static long powermod(long x, long y, long mod) {
		long ans = 1;
		x = x % mod;
		if (x == 0)
			return 0;
		int i = 1;
		while (y > 0) {
			if ((y & 1) != 0)
				ans = (ans * x) % mod;
			y = y >> 1;
			x = (x * x) % mod;
		}
		return ans;
	}
	public static void main(String[] args) throws Exception {
		FastReader sc = new FastReader();
		PrintWriter out = new PrintWriter(System.out);
        int t = sc.nextInt();
        outerloop:
        while(t-- > 0) {
        int n = sc.nextInt();
        int arr[] = new int[n];
        int brr[] = new int[n];
        int count[] = new int[n + 1];
        int count1[] = new int[n + 1];
        for(int i = 0; i < n; i++) {
        	count[arr[i]= sc.nextInt()]++;
        	count1[brr[i]= sc.nextInt()]++;
        }
        long ans = (long)(n) * (n - 1) * (n - 2) / 6;
        for(int i = 0; i < n; i++) {
        	if(count[arr[i]] == 0 || count1[brr[i]] == 0) continue;
        	ans -= (long)(count[arr[i]] - 1) * (count1[brr[i]] - 1);
        }
        out.println(ans);
        }
		out.close();
	}
}