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

public class Solution {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int q = sc.nextInt();
        for (int i = 0; i < q; i++) {
            int n = sc.nextInt();
            int[] xPoint = new int[n];
            int[] yPoint = new int[n];
            for (int j = 0; j < n; j++) {
                xPoint[j] = sc.nextInt();
                yPoint[j] = sc.nextInt();
            }

            System.out.println(checkNonDegenerate(x, y));
        }
    }

    public static String checkNonDegenerate(int[] x, int[] y) {
        xPoint = x[]
    }

    public class Line {
        public float m;
        public float c;

        public Line() {
            
        }
    }
}