fn main() { let mut x = 10; println!("Start: {}", x); x += 5; println!("After += 5: {}", x); x -= 2; println!("After -= 2: {}", x); x *= 2; println!("After *= 2: {}", x); x /= 3; println!("After /= 3: {}", x); x %= 4; println!("After %= 4: {}", x); }