#![allow(unused_imports,non_snake_case,dead_code)]
use std::{cmp::Reverse as Rev,collections::*,iter::*};
use proconio::{marker::*,*};


#[fastout]
fn main(){
    input!{
        n:usize,
        k:usize,
        s:[String;n],
        t:[String;n],
    }

    let id=s.iter().cloned().enumerate().map(|(a,b)|(b,a)).collect::<HashMap<_,_>>();
    let si=s.iter().map(|s|id[s]).collect::<Vec<_>>();
    let ti=t.iter().map(|t|id[t]).collect::<Vec<_>>();

    let mut sd=vec![!0;n];
    let mut td=vec![!0;n];
    
    for i in 0..n{
        sd[si[i]]=i%k;
        td[ti[i]]=i%k;
    }

    if sd==td{
        println!("Yes");
    } else{
        println!("No");
    }
}