#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <cmath>
#include <cctype>

using namespace std;

struct Point {
    double x;
    double y;
    string s;
};

void print(Point p){
    cout << p.s << ": (" << p.x << "," << p.y << ")" << endl;
}

Point read(string s){
    Point p;
    cout << s << " taskas, ivesk dvi koordinates: ";
    cin >> p.x >> p.y;
    p.s = s;
    return p;
}

double getDistance(Point p, Point q){
    double dx = p.x-q.x;
    double dy = p.y-q.y;
    return sqrt(dx*dx + dy*dy);
}

int main(){

    Point p1 = read("Pirmas"); // { 0, 0 };
    Point p2 = { 3, 4 }; // read("Antras");
    Point p3 = { 4, 3, "Trecias" }; // read("Antras");


    cout << "Turime tris taskus: " << endl;
    print(p1);
    print(p2);
    print(p3);

    cout << "Atstumas tarp p1 ir p2 yra " << getDistance(p1, p2) << endl;
    cout << "Atstumas tarp p1 ir p3 yra " << getDistance(p1, p3) << endl;

    return 0;
}