#include <iostream>
#include <string>

using namespace std;

int main(int argc, char **argv) {
	int const a = 3;
	int const b = 5;
	int const c = 2;
	double const d = 3.1415926;
	double const e = 4.0;

	cout << "-b = " << (-b) << endl;
	cout << "a + b = " << (a + b) << endl;
	cout << "a + -b = " << (a + -b) << endl;
	cout << "-a + b = " << (-a + b) << endl;
	cout << "-a + -b = " << (-a + -b) << endl;
	cout << "a - b = " << (a - b) << endl;
	cout << "a - -b = " << (a - -b) << endl;
	cout << "-a - b = " << (-a - b) << endl;
	cout << "-a - -b = " << (-a - -b) << endl;
	cout << "b * c = " << (b * c) << endl;
	cout << "b * -c = " << (b * -c) << endl;
	cout << "-b * c = " << (-b * c) << endl;
	cout << "-b * -c = " << (-b * -c) << endl;
	cout << "b / c = " << (b / double(c)) << endl;
	cout << "b / -c = " << (b / double(-c)) << endl;
	cout << "-b / c = " << (-b / double(c)) << endl;
	cout << "-b / -c = " << (-b / double(-c)) << endl;
	cout << "b // c = " << (b / c) << endl;
	cout << "b // -c = " << (b / -c) << endl;
	cout << "-b // c = " << (-b / c) << endl;
	cout << "-b // -c = " << (-b / -c) << endl;
	cout << "b % a = " << (b % a) << endl;
	cout << "b % -a = " << (b % -a) << endl;
	cout << "-b % a = " << (-b % a) << endl;
	cout << "-b % -a = " << (-b % -a) << endl;
	cout << "d + e = " << (d + e) << endl;
	cout << "d - e = " << (d - e) << endl;
	cout << "d * e = " << (d * e) << endl;
	cout << "e / d = " << (e / d) << endl;
	cout << "e // d = " << (int(e / d)) << endl;
	return 0;
}