#include <iostream.h>
class complex {
int real, imag;
public:
complex ();
void read ();
void write ();
int iszero ();
void add (complex C1, complex C2);
};
complex::complex () {
real = imag = 0;
}void complex::read () {
cin >> real >> imag;
}
void complex::write () {
cout << real <<" + "<< imag << 'i';
}
int complex::iszero () {
return (real ==0 && imag == 0)
}
void complex::add (complex C1, complex C2) {
real = C1.real + C2.real;
imag = C1.imag + C2.imag;
}