#!/usr/bin/env node;
const main = async () => {
	const a = 3;
	const b = 5;
	const c = 2;
	const d = 3.1415926;
	const e = 4.0;

	console.log("-b = " + (-b));
	console.log("a + b = " + (a + b));
	console.log("a + -b = " + (a + -b));
	console.log("-a + b = " + (-a + b));
	console.log("-a + -b = " + (-a + -b));
	console.log("a - b = " + (a - b));
	console.log("a - -b = " + (a - -b));
	console.log("-a - b = " + (-a - b));
	console.log("-a - -b = " + (-a - -b));
	console.log("b * c = " + (b * c));
	console.log("b * -c = " + (b * -c));
	console.log("-b * c = " + (-b * c));
	console.log("-b * -c = " + (-b * -c));
	console.log("b / c = " + (b / c));
	console.log("b / -c = " + (b / -c));
	console.log("-b / c = " + (-b / c));
	console.log("-b / -c = " + (-b / -c));
	console.log("b // c = " + (Math.trunc(b / c)));
	console.log("b // -c = " + (Math.trunc(b / -c)));
	console.log("-b // c = " + (Math.trunc(-b / c)));
	console.log("-b // -c = " + (Math.trunc(-b / -c)));
	console.log("b % a = " + (b % a));
	console.log("b % -a = " + (b % -a));
	console.log("-b % a = " + (-b % a));
	console.log("-b % -a = " + (-b % -a));
	console.log("d + e = " + (d + e));
	console.log("d - e = " + (d - e));
	console.log("d * e = " + (d * e));
	console.log("e / d = " + (e / d));
	console.log("e // d = " + (Math.trunc(e / d)));
}
main().catch( e => { console.error(e) } );