use std::io;
pub fn bin_num ()
{
println!("Please input number :");
let mut input = String::new();
io::stdin().read_line(&mut input).expect("Failed to read line");
let num: u32 = input.trim().parse().unwrap();
println!("Decimal number {}",num);
println!("binary of {} is {:b}",num,num);
println!("octal of {} is {:o}",num,num);
println!("hexa decimal of {} is {:x}",num,num);
}