#include <bits/stdc++.h>

using namespace std;
using Position = std::pair<int, int>;

int main() {
    int count, percent;
    std::cin >> count >> percent;
    std::vector<Position> positions (count);

    for (int i = 0; i < count; ++i) {
        Position p;
        std::cin >> p.first >> p.second;
        positions[i] = p;
    }

    std::map<Position, std::map<std::pair<double, double>, int>> parallels;
    for (int i = 0; i < count; ++i) {
        for (int j = i+1; j < count; ++j) {
            Position dist = {positions[i].first - positions[j].first, positions[i].second - positions[j].second};
            if (dist.first < 0)
                dist = {-dist.first, -dist.second};
            else if (!dist.first && dist.second < 0)
                dist = {0, -dist.second};
            int g = __gcd(dist.first ,dist.second);
            if (g < 0)
                g = -g;
            dist = {dist.first/g, dist.second/g};
            Position rect = {dist.second, -dist.first};
            std::pair<double, double> center = {
                    (double)(positions[i].first + positions[j].first) / 2,
                    (double)(positions[i].second + positions[j].second) / 2};
            if (rect.first)
                center = {0, center.second - center.first / rect.first * rect.second};
            else
                center = {center.first - center.second / rect.second * rect.first, 0};
            if (parallels[dist].count(center))
                ++ parallels[dist][center];
            else
                parallels[dist][center] = 1;
        }
    }
    for (auto parallel : parallels) {
        for (auto center : parallel.second)
            if (center.second * 200 >= count * percent) {
                std::cout << "YES\n";
                return 0;
            }
    }
    std::cout << "NO\n";
    return 0;
}