use std::mem;

fn print(f: f32) {
    let i = unsafe { mem::transmute::<f32, i32>(f) };
    let s = format!("{:032b}", i);

    let sign: String = s.chars().take(1).collect();
    let exponent: String = s.chars().skip(1).take(8).collect();
    let mantisse: String = s.chars().skip(9).take(23).collect();
    println!("{} {} {}: {:.2}", sign, exponent, mantisse, f);
}

fn main() {
    for i in 1..10 {
        print(i as f32);
        print(-i as f32);
    }
}