#include <bits/stdc++.h>
using namespace std;
//#include<atcoder/all>
//using namespace atcoder;
using ll = long long int;
using ull = unsigned long long int;
using ld = long double;
constexpr ll MAX = 2000000000000000000;
constexpr ld PI = 3.14159265358979;
constexpr ll MOD = 0;//2024948111;
ld dotorad(ld K){ return PI * K / 180.0; }
ld radtodo(ld K){ return K * 180.0 / PI; }
mt19937 mt;
void randinit(){ srand((unsigned)time(NULL));mt = mt19937(rand()); }
int main(){
    ll N,K;
    cin >> N >> K;
    map<string,ll> M;
    vector<string> S(N);
    vector<vector<ll>> X(K),Y(K);
    for(ll i = 0; i < N; i++){
        cin >> S[i];
        M[S[i]] = i;
        X[i % K].emplace_back(i);
    }
    for(ll i = 0; i < N; i++){
        string t;
        cin >> t;
        Y[i % K].emplace_back(M[t]);
    }
    for(ll i = 0;i < K;i++){
        sort(X[i].begin(),X[i].end());
        sort(Y[i].begin(),Y[i].end());
        if(X[i] != Y[i]){
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;
}