#include<iostream>
#include<cmath>
using namespace std;

struct complex
{
    double re,im;



};

complex add(complex z, complex w)
{
    complex t;
    t.re = z.re+w.re;
    t.im=z.im+w.im;
    return t;
}
//makrodefinicja
#define sqr(x) ((x)*(x))

double module (complex z)
{
    return sqrt(sqr(z.re)+sqr(z.im));
}

void print (complex z)
{
    cout<<"("<<z.re<<","<<z.im<<")"<<endl;


}

main()
{
    complex z, w, t;
    z.re=1; z.im=-3;
    w.re=-2; w.im=2.5;
    t=add(z,w);
    print(t);
    cout<<module(t)<<endl;

    system("pause");
}