#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
ll inf_ll = 9223372036854775807;
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
using mint = atcoder::modint998244353;
using mint1 = atcoder::modint1000000007;
using Pa = std::pair<ll, ll>;

int Yes(bool x){
    if(x) cout << "Yes";
    else cout << "No";
    cout << endl;
    return 0;
}

int main(){
    ll N, K;
    cin >> N >> K;
    vector<string> S(N), T(N);
    rep(i, N) cin >> S[i];
    rep(i, N) cin >> T[i];
    bool ans = true;
    rep(i, K){
        set<string> A, B;
        for(ll j = i; j < N; j += K){
            A.insert(S[j]);
            B.insert(T[j]);
        }
        if(A != B){
            ans = false;
            break;
        }
    }
    Yes(ans);
}