using System;public static class B3639 private static void Main byte s=byteParseConsoleReadLine; switchs case 1 ConsoleWriteLineB; break;

use std::io;

fn main() { let mut input = String::new(); io::stdin().read_line(&mut input).expect("Failed to read line"); let s: u8 = input.trim().parse().expect("Invalid input");

match s {
    1 => println!("B"),
    2 => println!("A"),
    3 => println!("8"),
    4 => println!("50"),
    5 => println!("6,5,4,3,2,1,"),
    _ => (),
}

}