//! # Bundled libraries
//!
//! - `procon_reader 0.1.0 (git+https://github.com/ia7ck/rust-competitive-programming#335f9833a85008436ad69ec586f94faa318557b6)` licensed under **missing** as `crate::procon_reader`

use procon_reader::ProconReader;

fn main() {
    let stdin = std::io::stdin();
    let mut rd = ProconReader::new(stdin.lock());

    let s: Vec<char> = rd.get_chars();

    let mut s = s;
    s.sort();
    let mut t:Vec<char> = "kyoprotenkei90".chars().collect();
    t.sort();

    if s == t {
        println!("Yes");
    } else {
        println!("No");
    }
}

// The following code was expanded by `cargo-equip`.


#[cfg_attr(any(),rustfmt::skip)]#[allow(unused)]pub mod procon_reader{use std::io::BufRead;use std::str::FromStr;pub struct ProconReader<R>{r:R,l:String,i:usize,}impl<R:BufRead>ProconReader<R>{pub fn new(reader:R)->Self{Self{r:reader,l:String::new(),i:0,}}pub fn get<T>(&mut self)->T where T:FromStr,<T as FromStr>::Err:std::fmt::Debug,{self.skip_blanks();assert!(self.i<self.l.len());assert_ne!(&self.l[self.i..=self.i]," ");let rest=&self.l[self.i..];let len=rest.find(' ').unwrap_or_else(| |rest.len());let val=rest[..len].parse().unwrap_or_else(|e|panic!("{:?}, attempt to read `{}`",e,rest));self.i+=len;val}fn skip_blanks(&mut self){loop{match self.l[self.i..].find(|ch|ch!=' '){Some(j)=>{self.i+=j;break;}None=>{let mut buf=String::new();let num_bytes=self.r.read_line(&mut buf).unwrap_or_else(|_|panic!("invalid UTF-8"));assert!(num_bytes>0,"reached EOF :(");self.l=buf.trim_end_matches('\n').trim_end_matches('\r').to_string();self.i=0;}}}}pub fn get_vec<T>(&mut self,n:usize)->Vec<T>where T:FromStr,<T as FromStr>::Err:std::fmt::Debug,{(0..n).map(|_|self.get()).collect()}pub fn get_chars(&mut self)->Vec<char>{self.get::<String>().chars().collect()}}}