#include <bits/stdc++.h>
//#include <atcoder/modint>

using namespace std;
//using namespace atcoder;
using ll = long long;
//using mint = modint998244353;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    int N, K;
    string s;
    cin >> N >> K;
    vector<vector<string>> v(K), w(K);
    for (int i=0; i<N; i++){
        cin >> s;
        v[i%K].push_back(s);
    }
    for (int i=0; i<N; i++){
        cin >> s;
        w[i%K].push_back(s);
    }
    for (auto &x : v) sort(x.begin(), x.end());
    for (auto &x : w) sort(x.begin(), x.end());

    for (int i=0; i<K; i++){
        if (v[i] != w[i]){
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;

    return 0;
}