#include <iostream>

using namespace std;

void GetSubstraction(int& a, int b)
{
	a-=b;
}
void GetSubstraction(int &aReal, int &aComplex, int bReal, int bComplex)
{
	aReal-=bReal;
	aComplex-=bComplex;
}
int main()
{
	char choise;
	cout<<"Press r to substraction two real numbers or c to complex: ";
	cin >>choise;
	switch (choise)
	{
		case 'r':
			int a, b;
			cout<<"Enter first real number: ";
			cin>>a;
			cout<<"Enter second real number: ";
			cin >>b;
			GetSubstraction(a,b);
			cout<<"Result: "<<a<<endl;
			break;
		case 'c':
			int aReal, aComplex, bReal, bComplex;
			cout<<"Enter real part of first number: ";
			cin>>aReal;
			cout<<"Enter complex part of first number: ";
			cin>>aComplex;
			cout<<"Enter real part of second number: ";
			cin>>bReal;
			cout<<"Enter complex part of second number: ";
			cin>>bComplex;
			GetSubstraction(aReal,aComplex,bReal,bComplex);
			if(aComplex>0)
				cout<<"Result: "<<aReal<<"+("<<bComplex<<")i"<<endl;
			else if(aComplex<0)
				cout<<"Result: "<<aReal<<"-("<<bComplex*(-1)<<")i"<<endl;
			else
				cout<<"Result: "<<aReal<<endl;
			break;
		default:
			cout<< "Wrong pick"<<endl;
			break;
	}
	return 0;
}