int main() {
	double x, y;
	char p;
	cout << "\n";
	cout << "---------------------------------- \n";
	cout << "1-st numb : ";
	cin>>x;
	system("cls");
	cout << x << "\n";
	cout << "---------------------------------- \n";
	cout << "sign : ";
	cin >> p;
	system("cls");
	if (p == '+') {
		cout << x << "+ \n";
		cout << "---------------------------------- \n";
		cout << "2-nd numb : ";
		cin >> y;
		system("cls");
		cout << x << "+"<< y<< "="<< x + y<< "\n";
		cout << "---------------------------------- \n";
		cout << "Ez \n\n";
		system("pause");
	}
	else if (p == '-') {
		cout << x << "- \n";
		cout << "---------------------------------- \n";
		cout << "2-nd numb : ";
		cin >> y;
		system("cls");
		cout << x << "-" << y << "=" << x - y << "\n";
		cout << "---------------------------------- \n";
		cout << "Ez \n\n";
		system("pause");
	}
	else if (p == '*') {
		cout << x << "* \n";
		cout << "---------------------------------- \n";
		cout << "2-nd numb : ";
		cin >> y;
		system("cls");
		cout << x << "*" << y << "=" << x * y << "\n";
		cout << "---------------------------------- \n";
		cout << "Ez \n\n";
		system("pause");
	}
	else if (p == '/') {
		cout << x << "/ \n";
		cout << "---------------------------------- \n";
		cout << "2-nd numb : ";
		cin >> y;
		system("cls");
		cout << x << "/" << y << "=" << x / y << "\n";
		cout << "---------------------------------- \n";
		cout << "Ez \n\n";
		system("pause");
	}
	else {
		system("cls");
		cout << "Error";
		system("pause");
	}
	system("pause");
}