#include <iostream>
#include <windows.h>
#include <cmath>
#include <math.h>
using namespace std;
int main()
{
	int xa,xb,ya,yb;

	cout<<"Podaj liczbe xa,ya,xb,yb"<<endl;
	cout<<"xa="; cin>>xa;
	cout<<"ya="; cin>>ya;
    cout<<"xb="; cin>>xb;
    cout<<"yb="; cin>>yb;
	float x=sqrt(pow(xb-xa,2)+(pow(yb-ya,2)));
    cout<<"AB="<<x<<endl;
    int xp,yp;
    xp=3;
    yp=4;
    float q=sqrt(pow(xa-xp,2)+(pow(ya-yp,2)));
    cout<<"AP="<<q<<endl;
    float w=sqrt(pow(xb-xp,2)+(pow(yb-yp,2)));
	cout<<"PB="<<w<<endl;

	if(x=q+w)
	{
    cout<<"Nalezy"<<endl;
    }
    else
    {
    	cout<<"nienalezy"<<endl;
	}
    return 0;
}