import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.Scanner;


public class F {
	Scanner in = new Scanner(System.in);
	int[] x;
	int[] y;
	Random rand = new Random();

	public double getSlope(int x1, int y1, int x2, int y2){
		return 1.0*(y2-y1)/(x2-x1);
	}
	
	public void go(){
		int n = in.nextInt();
		int p = in.nextInt();
		x = new int[n];
		y = new int[n];
		for (int i=0; i<n; i++){
			x[i] = in.nextInt();
			y[i] = in.nextInt();
		}
		String result = "impossible";
		if (n==1){
			result="possible";
		}
		else{
			for (int i=0; i<100000; i++){
				int rand1 = rand.nextInt(n);
				int rand2=rand1;
				while (rand2==rand1){
				rand2 = rand.nextInt(n);}
				
				int count=0;
				for (int j=0; j<n; j++){
					if (getSlope(x[rand1], y[rand1], x[j], y[j])==getSlope(x[rand2], y[rand2], x[j], y[j])){
						count++;
					}
					else if(rand1==j || rand2==j){
						count++;
					}
				}
				if (count * 100.0/n >= p){
					result="possible";
					break;
				}
			}
			
		}

		

		System.out.println(result);

	}

	public static void main(String[] args){
		F f = new F();
		f.go();
	}


}