fn main() {
	let a:isize = 3;
	let b:isize = 5;
	let c:isize = 2;
	let d:f64 = 3.1415926f64;
	let e:f64 = 4.0f64;

	println!("-b = {}", (-b));
	println!("a + b = {}", (a + b));
	println!("a + -b = {}", (a + -b));
	println!("-a + b = {}", (-a + b));
	println!("-a + -b = {}", (-a + -b));
	println!("a - b = {}", (a - b));
	println!("a - -b = {}", (a - -b));
	println!("-a - b = {}", (-a - b));
	println!("-a - -b = {}", (-a - -b));
	println!("b * c = {}", (b * c));
	println!("b * -c = {}", (b * -c));
	println!("-b * c = {}", (-b * c));
	println!("-b * -c = {}", (-b * -c));
	println!("b / c = {}", (f64::from(b) / f64::from(c)));
	println!("b / -c = {}", (f64::from(b) / f64::from(-c)));
	println!("-b / c = {}", (f64::from(-b) / f64::from(c)));
	println!("-b / -c = {}", (f64::from(-b) / f64::from(-c)));
	println!("b // c = {}", (b / c));
	println!("b // -c = {}", (b / -c));
	println!("-b // c = {}", (-b / c));
	println!("-b // -c = {}", (-b / -c));
	println!("b % a = {}", (b % a));
	println!("b % -a = {}", (b % -a));
	println!("-b % a = {}", (-b % a));
	println!("-b % -a = {}", (-b % -a));
	println!("d + e = {}", (d + e));
	println!("d - e = {}", (d - e));
	println!("d * e = {}", (d * e));
	println!("e / d = {}", (e / d));
	println!("e // d = {}", ((e / d) as isize));
}