#include <iostream>
#include <vector>
#include <set>
using namespace std;

int main(){
    int N, K;
    cin >> N >> K;
    vector<multiset<string>> A(K), B(K);
    for (int i = 0; i < N; i++){
        string s;
        cin >> s;
        A[i%K].insert(s);
    }
    for (int i = 0; i < N; i++){
        string s;
        cin >> s;
        B[i%K].insert(s);
    }

    if (A == B) cout << "Yes" << endl;
    else cout << "No" << endl;
}