Problem: You are given n points with integer coordinates on the plane. Points are given in a way such that there is no triangle, formed by any three of these n points, which area exceeds S.

Alyona tried to construct a triangle with integer coordinates, which contains all n points and which area doesn't exceed 4S, but, by obvious reason, had no success in that. Please help Alyona construct such triangle. Please note that vertices of resulting triangle are not necessarily chosen from n given points.

Input

In the first line of the input two integers n and S (3 ≤ n ≤ 5000, 1 ≤ S ≤ 1018) are given — the number of points given and the upper bound value of any triangle's area, formed by any three of given n points.

The next n lines describes given points: ith of them consists of two integers xi and yi ( - 108 ≤ xi, yi ≤ 108) — coordinates of ith point.

It is guaranteed that there is at least one triple of points not lying on the same line.

Output

Print the coordinates of three points — vertices of a triangle which contains all n points and which area doesn't exceed 4S.

Coordinates of every triangle's vertex should be printed on a separate line, every coordinate pair should be separated by a single space. Coordinates should be an integers not exceeding 109 by absolute value.

It is guaranteed that there is at least one desired triangle. If there is more than one answer, print any of them.

Example

Input

4 1
0 0
1 0
0 1
1 1


Output

-1 0
2 0
0 2

Note

<image>

Solution (in JAVA):

Solution:
import java.util.*;	
import java.io.*;
import java.awt.*;
public class AlyonaTr {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine());
		int m = Integer.parseInt(st.nextToken());
		st.nextToken();
		
//		char[][] map = new char[200][200]; for(int i = 0; i < 200; i++) Arrays.fill(map[i], '.');
		
		Point[] psp = new Point[m];
		for(int i = 0; i < m; i++){
			st = new StringTokenizer(br.readLine());
			psp[i] = new Point();
			psp[i].x = Integer.parseInt(st.nextToken());
			psp[i].y = Integer.parseInt(st.nextToken());
//			map[psp[i].x+100][psp[i].y+100] = 'º';
		}
		Point[] ps = ConvexHull.ch(psp); int n = ps.length;
		
//		for(Point p: ps) map[p.x+100][p.y+100] = 'H';
		
		int a = 0; int b = 1; int c = 2; long maxarea = area(ps,a,b,c);
		for(int i = 0; i < n-2; i++){
			int j = i+1; int k = i+2;
			while(j < n-1){
				while(k < n-1 && area(ps,i,j,k) < area(ps,i,j,k+1)) k++;
				if(area(ps,i,j,k) > maxarea){
					a = i; b = j; c = k; maxarea = area(ps,i,j,k);
				}
				j++;
			}
		}
			
		Point pA = ps[a]; Point pB = ps[b]; Point pC = ps[c];
		//pA + pC - pB
		long ax = (pA.x + pB.x - pC.x); long ay = (pA.y + pB.y - pC.y);
		System.out.println(ax+" "+ay);
		//pB + pA - pC
		System.out.println((pB.x + pC.x - pA.x)+" "+(pB.y + pC.y - pA.y));
		//pC + pB - pA
		System.out.println((pC.x + pA.x - pB.x)+" "+(pC.y + pA.y - pB.y));
		Point p1 = new Point((pA.x + pB.x - pC.x),(pA.y + pB.y - pC.y));
		Point p2 = new Point((pB.x + pC.x - pA.x),(pB.y + pC.y - pA.y));
		Point p3 = new Point((pC.x + pA.x - pB.x),(pC.y + pA.y - pB.y));
//		if(m <= 5000){
//			System.out.println("");
//			StringBuilder sb = new StringBuilder();
//			for(int i = 0; i < m; i++){
//				if(!inside(p1, p2, p3, psp[i])) sb.append(psp[i]+"\n");
//			}
//			System.out.println(sb.toString().trim());
//		}
//		
//
//		for(int i = 0; i < 200; i++) System.out.println(new String(map[i]));
		
	}
	public static boolean inside(Point A, Point B, Point C, Point O){
		if(cross(O,A,B)>=0 && cross(O,B,C)>=0 && cross(O,C,A)>=0) return true;
		else return false;
	}
	public static long area(Point[] ps, int i, int j, int k){
		return area(ps[i],ps[j],ps[k]);
	}
	public static long area(Point O, Point A, Point B){
		return Math.abs(cross(O,A,B));
	}
	public static long cross(Point O, Point A, Point B){
		return (long)((long)A.x-(long)O.x)*((long)B.y-(long)O.y) - (long)((long)A.y-(long)O.y)*((long)B.x-(long)O.x);
	}

	static class ConvexHull{
		public static Point[] ch(Point[] P){
			if(P.length <= 1) return P;
			int n = P.length, k = 0;
			Point[] H = new Point[2*n];
			Arrays.sort(P);
			for(int i = 0; i < n; i++){
				while(k >= 2 && cross(H[k-2],H[k-1],P[i])<=0) k--;
				H[k++] = P[i];
			}
			for(int i = n-2, t = k+1; i>=0; i--){
				while(k >= t && cross(H[k-2],H[k-1],P[i])<=0) k--;
				H[k++] = P[i];	
			}
			if(k > 1){
				H = Arrays.copyOfRange(H, 0, k-1);
			}
			return H;
		}
	}



	static class Point implements Comparable<Point>{
		int x, y;
		public Point(){};
		public Point(int x, int y){
			this.x = x; this.y = y;
		}
		public int compareTo(Point o){
			if(x == o.x) return y - o.y;
			else return x - o.x;
		}
		public String toString(){
			return x+" "+y;
		}
	}

}