#include <bits/stdc++.h>
using namespace std;
int main(void){
    int n,k;
    int check = 0;
    string mem;
    string member[100000];
    
    cin >> n >> k;
    
    for(int i = 0; i < n; i++){
        cin >> member[i];
    }
    
    for(int i = 0; i < n; i++){
        cin >> mem;
        for(int t = 0; t < n; t++){
            if(member[t] == mem){
                if(t % k != i % k)check = 1;
                break;
            }
        }
        if(check == 1){
            cout << "No" << endl;
            break;
        }
    }

    if(check == 0)cout << "Yes" << endl;

    
    return 0;
}