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.

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



public class Main {
	  static class Reader{
		  
			BufferedReader br;
			StringTokenizer st;
			public Reader() {
				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 long mod = (long)(1e9 + 7);
	 
	static void sort(long[] arr ) {
		 ArrayList<Long> al = new ArrayList<>();
		 for(long e:arr) al.add(e);
		 Collections.sort(al);
		 for(int i = 0 ; i<al.size(); i++) arr[i] = al.get(i);
	 }
	static void sort(int[] arr ) {
		 ArrayList<Integer> al = new ArrayList<>();
		 for(int e:arr) al.add(e);
		 Collections.sort(al);
		 for(int i = 0 ; i<al.size(); i++) arr[i] = al.get(i);
	 }
	static void sort(char[] arr) {
		ArrayList<Character> al = new ArrayList<Character>();
		for(char cc:arr) al.add(cc);
		Collections.sort(al);
		for(int i = 0 ;i<arr.length ;i++) arr[i] = al.get(i);
	}
	static void rvrs(int[] arr) {
		int i =0 , j = arr.length-1;
		while(i>=j) {
			int temp = arr[i];
			arr[i] = arr[j];
			arr[j] = temp;
			i++;
			j--;
		}
	}
	static long[] rvrs(long[] arr) {
		int i =0 , j = arr.length-1;
		int n = arr.length;
		long[] ans = new long[n];
		for( i =0 ; i<n ; i++)
			ans[i] = arr[j--];
		return ans;
	}

	static long mod_mul(long a , long b ,long mod) {
		return ((a%mod)*(b%mod))%mod;
	}
	 static long gcd(long a, long b)
	  {      
	     if (b == 0)
	        return a;
	     return gcd(b, a % b); 
	  }
	 static boolean[] prime(int num) {
			boolean[] bool = new boolean[num];
		     
		      for (int i = 0; i< bool.length; i++) {
		         bool[i] = true;
		      }
		      for (int i = 2; i< Math.sqrt(num); i++) {
		         if(bool[i] == true) {
		            for(int j = (i*i); j<num; j = j+i) {
		               bool[j] = false;
		            }
		         }
		      }
		      if(num >= 0) {
		    	  bool[0] = false;
		    	  bool[1] = false;
		      }
		      
		      return bool;
		}

	 static long modInverse(long a, long m)
	    {
	        long g = gcd(a, m);
	       
	          return   power(a, m - 2, m);
	        
	    }
	   
	 static long power(long x, long y, long m){
	        if (y == 0) return 1; long p = power(x, y / 2, m) % m; p = (int)((p * (long)p) % m);
	        if (y % 2 == 0) return p; else return (int)((x * (long)p) % m); }
	   
     static class Combinations{
	    	 private long[] z;
	    	 private long[] z1;
	    	 private long[] z2;
	    	 long MOD;
	    	  public Combinations(long N , long mod) {
	    		  MOD  = mod;
				z = new long[(int)N+1];
				z1 = new long[(int)N+1];
				z[0] = 1;
				for(int i =1 ; i<=N ; i++) z[i] = (z[i-1]*i)%MOD;
			     z2 = new long[(int)N+1];
				z2[0] = z2[1] = 1;
			    for (int i = 2; i <= N; i++)
			        z2[i] = z2[(int)(MOD % i)] * (MOD - MOD / i) % MOD;
			    
			    
			    z1[0] = z1[1] = 1;
			    
			    for (int i = 2; i <= N; i++)
			        z1[i] = (z2[i] * z1[i - 1]) % MOD;
			}
	    	  long fac(long n) {
	    		  return z[(int)n];
	    	  }
	    	  long invrsNum(long n) {
	    		  return z2[(int)n];
	    	  }
	    	  long invrsFac(long n) {
	    		  return invrsFac((int)n);
	    	  }
	    	  long ncr(long N, long R)
	    	  {		if(R<0 || R>N ) return 0;
	    		    long ans = ((z[(int)N] * z1[(int)R])
	    		              % MOD * z1[(int)(N - R)])
	    		             % MOD;
	    		    return ans;
	    		}
	      }
     static class DisjointUnionSets {
         private int[] parent;  // parent[i] = parent of i
         private byte[] rank;   // rank[i] = rank of subtree rooted at i (never more than 31)
         private int count;     // number of components
         private int[] size;
         public DisjointUnionSets(int n) {
             if (n < 0) throw new IllegalArgumentException();
             count = n;
             parent = new int[n];
             rank = new byte[n];
             size = new int[n];
             for (int i = 0; i < n; i++) {
                 parent[i] = i;
                 rank[i] = 0;
                 size[i] = 1;
             }
         }
  
         public int find(int p) {
             while (p != parent[p]) {
                 parent[p] = parent[parent[p]];    // path compression by halving
                 p = parent[p];
             }
             return p;
         }
  
         public int count() {
             return count;
         }
  
         public boolean connected(int p, int q) {
             return find(p) == find(q);
         }
  
         public void union(int p, int q) {
             int rootP = find(p);
             int rootQ = find(q);
             if (rootP == rootQ) return;
  
             // make root of smaller rank point to root of larger rank
             if (rank[rootP] < rank[rootQ]) {
                 parent[rootP] = rootQ;
                 size[rootQ] = size[rootQ] + size[rootP];
             }
             else if (rank[rootP] > rank[rootQ]) {
                 parent[rootQ] = rootP;
                 size[rootP] = size[rootP] + size[rootQ];
             }
             else {
                 parent[rootQ] = rootP;
                 size[rootP] = size[rootP] + size[rootQ];
                 rank[rootP]++;
             }
             count--;
         }
     }
	      static int[] KMP(String str) {
	    	  int n = str.length();
	    	  int[] kmp = new int[n];
	    	  for(int i = 1 ; i<n ; i++) {
	    		  int j = kmp[i-1];
	    		  while(j>0 && str.charAt(i) != str.charAt(j)) {
	    			  j = kmp[j-1];
	    		  }
	    		  if(str.charAt(i) == str.charAt(j)) j++;
	    		  kmp[i] = j;
	    	  }
	    	  
	    	  return kmp;
	      }
	      
	      
/************************************************ Query **************************************************************************************/	  
	 
/***************************************** 		Sparse Table	********************************************************/
	      static class SparseTable{
	    		
	    		private long[][] st;
	    		
	    		SparseTable(long[] arr){
	    			int n = arr.length;
	    			st = new long[n][25];
	    			log = new int[n+2];
	    			build_log(n+1);
	    			build(arr);
	    		}
	    		
	    		private void build(long[] arr) {
	    			int n = arr.length;
	    			
	    			for(int i = n-1 ; i>=0 ; i--) {
	    				for(int j = 0 ; j<25 ; j++) {
	    					int r = i + (1<<j)-1;
	    					if(r>=n) break;
	    					if(j == 0 ) st[i][j] = arr[i];
	    					else st[i][j] = Math.min(st[i][j-1] , st[ i + ( 1 << (j-1) ) ][ j-1 ] );
	    				}
	    			}
	    		}
	    		public long gcd(long a  ,long b) {
	    			if(a == 0) return b;
	    			return gcd(b%a , a);
	    		}
	    		public long query(int l ,int r) {
	    			
	    			int w = r-l+1;
	    			int power = log[w];
	    			return Math.min(st[l][power],st[r - (1<<power) + 1][power]);
	    		}
	    		private int[] log;
	    		void build_log(int n) {
	    			log[1] = 0;
	    			for(int i = 2 ; i<=n ; i++) {
	    				log[i] = 1 + log[i/2];
	    			}
	    		}
	    	}
	      
	      
/********************************************************	Segement Tree	*****************************************************/
/**
	 	 static class SegmentTree{
			 long[] tree;
			 long[] arr;
			 int n;
			 SegmentTree(long[] arr){
				 this.n = arr.length;
				 tree = new long[4*n+1];
				 this.arr = arr;
				 buildTree(0, n-1, 1);
			 }
			 
			 
			  void buildTree(int s ,int e  ,int index ) {
					if(s == e) {
						tree[index] = arr[s];
						return;
					}
				
					int mid = (s+e)/2;
					
					buildTree( s,  mid, 2*index);
					buildTree( mid+1, e, 2*index+1);
					
					tree[index] = Math.min(tree[2*index] , tree[2*index+1]);
				}
			  
			 long query(int si ,int ei) {
				 return query(0 ,n-1 , si ,ei , 1   );
			 }
			 private long query( int ss ,int se ,int qs , int qe,int index) {
					
					if(ss>=qs && se<=qe) return tree[index];
					
					if(qe<ss || se<qs) return (long)(1e17);
					
					int mid = (ss + se)/2;
					long left = query( ss , mid , qs ,qe , 2*index);
					long right= query(mid + 1 , se , qs ,qe , 2*index+1);
					return Math.min(left, right);
				}
			 public void update(int index , int val) {
				 arr[index] = val;
				 for(long e:arr) System.out.print(e+" ");
				 update(index , 0 , n-1 , 1);
			 }
			 private void update(int id ,int si , int ei , int index) {
				 if(id < si || id>ei) return;
				 if(si == ei ) { 
					 tree[index] = arr[id];
					 return;
				 }
				 if(si > ei) return;
				 int mid = (ei + si)/2;
					
					update( id,  si, mid , 2*index);
					update( id , mid+1, ei , 2*index+1);
					
					tree[index] = Math.min(tree[2*index] ,tree[2*index+1]);
			 }
			  
		 }
		 */

/* ***************************************************************************************************************************************************/	 
	 
	      static Reader sc = new Reader();
	 static StringBuilder sb = new StringBuilder();
	 public static void main(String args[])  {
	
		 int tc = 1;
		  tc = sc.nextInt();
		 
		  for(int i = 1 ; i<=tc ; i++) {

//			 sb.append("Case #" + i + ": "  );	// During KickStart && HackerCup
			 TEST_CASE();
			 
		 }
		 System.out.println(sb);

	 }

	static void TEST_CASE() {
		int n = sc.nextInt();
		int[] x = new int[n] , y = new int[n];
		for(int i = 0;i<n ; i++) {
			x[i] = sc.nextInt() ; y[i] = sc.nextInt();
		}
		long[] count1 = new long[n+1] , count2 = new long[n+1];
		for(int i = 0 ; i<n ; i++) {
			count1[x[i]]++;
			count2[y[i]]++;
		}
		long tot = nc3(n);
//		System.out.println(tot);
		for(int i = 0 ; i<n ; i++) {
			long a1 = count1[x[i]]-1 , b1 = count2[y[i]]-1;
			tot -= a1*b1;
		}
		// 2
//		System.out.println(tot);
//		long sub = 0;
//		for(int i = 1 ; i<=n ; i++) {
////			long a = nc2(count1[i]);
////			a *= (n - count1[i]);
////			sub += a;
////			System.out.println("--------------");
////			System.out.println(i+" "+sub);
////			a = nc2(count2[i]);
////			a *= (n - count2[i]);
////			sub += a;
//			sub += nc3(count1[i]) + nc3(count2[i]);
//		}
//		System.out.println(sub);
//		tot -= sub;
		sb.append(tot+"\n");
	}
	static long nc3(long n) {
		long ans = n*(n-1)*(n-2);
		return ans/6;
	}
	static long nc2(long n) {
		long ans = n*(n-1);
		return ans/2;
	}
}

/*******************************************************************************************************************************************************/

/**

 */






