#include <stdio.h>
#include <stdlib.h>
#include <iostream>
using namespace std;

struct pt{
	int x, y;
	pt(){}
	pt(int x_, int y_){ x = x_; y = y_; }
};

int N, P;
const int K = 800;
pt dat[100002];

int main(){
//	freopen("input.txt","r",stdin);
	scanf("%d %d", &N, &P);
	for(int i = 1 ; i <= N ; i ++){
		scanf("%d %d", &dat[i].x, &dat[i].y);
	}
	srand(0);
	
	if(N == 1){
		printf("possible\n");
		return 0;	
	}
	bool ans = false;
	for(int i = 1 ; i <= K ; i ++){
		int r1 = rand()%N+1;
		int r2 = rand()%N+1;

		if(r1 == r2){
			continue;
			i --;
		}
		long long dx = dat[r1].x-dat[r2].x;
		long long dy = dat[r1].y-dat[r2].y;
		long long x0 = dat[r2].x;
		long long y0 = dat[r2].y;
		
		int cnt = 0;
		for(int j = 1 ; j <= N ; j ++){
			if((((long long)dat[j].y)-y0)*dx == dy*(((long long)dat[j].x)-x0)) cnt ++;
		}
		if(cnt * 100 >= P*N){
			ans = true; break;
		}
	}
	if(ans) printf("possible\n");
	else printf("impossible\n");
	return 0;
}