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#include <iostream>
#include <vector>

using namespace std;

struct point {
	float x;
	float y;
};

int main() {
	point dote;
	vector<point> points;
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> dote.x >> dote.y;
		points.push_back(dote);
	}
	
}