#include <bits/stdc++.h>
using namespace std;
int main(void){
    int n,k;
    int check = 0;
    int ok = 1;
    string mem;
    
    cin >> n >> k;
    
    vector<vector<string>> member(k,vector<string>(0));
    
    for(int i = 0; i < n; i++){
        cin >> mem;
        member.at(i % k).push_back(mem);
    }
    
    for(int i = 0; i < n; i++){
        cin >> mem;
        for(int t = 0; t < member.at(i % k).size(); t++){
            if(member.at(i % k).at(t) == mem){
                check = 1;
                break;
            }
        }
        
        if(check == 0){
            ok = 0;
            break;
        }
        
        check = 0;
        
    }
    
    if(ok == 1)cout << "Yes" << endl;
    else cout << "No"<< endl;

    
    return 0;
}