use std::io::*;
use std::str::FromStr;

fn calc(n: i64, z: i64) -> String {
    let zpown = z.pow(n as u32);
    for x in 1..z {
        let xpown = x.pow(n as u32);
        let ypown = zpown - xpown;

        if xpown + ypown == zpown {
            return "Yes".to_string();
        }
    }
    "No".to_string()
}

fn main() {
    let mut s = String::new();
    stdin().read_line(&mut s).ok();
    let mut it = s.split_whitespace();
    let n = i64::from_str(it.next().unwrap()).unwrap();
    let z = i64::from_str(it.next().unwrap()).unwrap();

    if n >= 3 {
        println!("No");
    } else {
        if z == 1 {
            println!("No");
        } else {
            println!("{}", calc(n, z));
        }
    }
}