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

struct complex
{
    double re;
    double im;
};

void PrintComplexNumber(complex val);
bool EnterComplexNumber(complex &val);

int main()
{
    complex A, B, C;
    if((cout<<"Number A :\n") && !EnterComplexNumber(A))
        cout<<"???????????* ?????®?¤?*\n";
    else
    if((cout<<"Number B :\n") && !EnterComplexNumber(B))
        cout<<"???????????* ?????®?¤?*\n";
    else
    {
        //(a1 + i*b1)*(a2 + i*b2) = a1*a2 - b1*b2 + i*(a1*b2 + a2*b1)
        C.re = (A.re*B.re + A.im*B.im)/(B.re*B.re + B.im*B.im);
        C.im = (A.im*B.re + A.re*B.im)/(B.re*B.re + B.im*B.im);
        cout<<"Vichitanie A/B :\n";
        PrintComplexNumber(C);
    }
    system("pause");
    return 0;
}

void PrintComplexNumber(complex val)
{
    cout<<val.re;
    if(val.im < 0)
        cout<<" - i"<<-val.im;
    else
        cout<<" + i"<<val.im;
    cout<<endl;
}

bool EnterComplexNumber(complex &val)
{
    bool bInput = true;
    cout<<"Vveditb diisnu chastinu : ";
    if(!(cin>>val.re) || cin.get() != '\n')
        bInput = false;
    if(bInput)
    {
        cout<<"Vveditb uuavnu chastinu : ";
        if(!(cin>>val.im) || cin.get() != '\n')
            bInput = false;
    }
    if(!bInput)
    {
        cin.clear();
        cin.sync();
    }
    return bInput;
}