#include <bits/stdc++.h>

#include <gtest/gtest.h>

using namespace std;

//// START

/*

## Complex Number Multiplication

*/

class Num {

public:

int real;

int complex;

static Num fromstr(string num){

int p = 1;

for (;p < num.size();p++){

if (num[p] == '+') break;

}

auto n = Num{};

n.real = stoi(num.substr(0,p));

n.complex = stoi(num.substr(p+1,num.size() - p-2));

return n;

}

string str(){

string ret;

ret += to_string(real);

ret += "+";

ret += to_string(complex);

ret += "i";

return ret;

}

};

class Solution {

public:

string complexNumberMultiply(string num1, string num2) {

auto n1 = Num::fromstr(num1);

auto n2 = Num::fromstr(num2);

auto r = Num{};

r.real = n1.real * n2.real + n1.complex * n2.complex;

r.complex = n1.complex*n2.real + n1.real*n2.complex;

return r.str();

}

};

//// END

struct T{

};

TEST(Solution,test){

T ts[] = {

{

},

{

},

};

for (T t : ts){

Solution solution;

}

}

int main() {

testing::InitGoogleTest();

return RUN_ALL_TESTS();

}