import java.awt.Point;
import java.util.*;

/**
 * Created by jordanly on 1/7/15.
 */
public class Finding_Lines {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int numPoints = in.nextInt();
        double goal = in.nextInt();

        Point[] points = new Point[numPoints];
        for (int i = 0; i < points.length; i++) {
            points[i] = new Point(in.nextInt(), in.nextInt());
        }

        int TRIALS = 1000;
        Random random = new Random();
        for (int i = 0; i < TRIALS; i++) {
            if (points.length == 1) {
                System.out.println("possible");
                return;
            }
            Point a = points[random.nextInt(points.length)];
            Point b = points[random.nextInt(points.length)];

            if (a == b) {
                continue;
            }

            int count = 2;
            for (int j = 0; j < points.length; j++) {
                Point c = points[j];

                if (c != a && c != b) {
                    if (collinear(a, b, c)) {
                        count++;
                    }
                }
            }

            int percentage = (int) ((double) count/(double) points.length * 100);
            if (percentage > goal) {
                System.out.println("possible");
                return;
            }
        }

        System.out.println("impossible");
    }

    public static boolean collinear(Point a, Point b, Point c) {
        return (a.y - b.y) * (a.x - c.x) == (a.y - c.y) * (a.x - b.x);
    }
}