#include <iostream>
#include <cmath>
    
// using namespace std; //  <===  works very badly
// instead use the following

using std::cout;
using std::cin;
using std::endl;


#define MAXNAMELEN 50
#define MAXCITY 200

struct City {
	char name[MAXNAMELEN];
	double x,y;
};


int main() {

}