#include<bits/stdc++.h>
using namespace std;
using ll = long long;

const int iinf = 1e9;
const ll inf = 1e18;

template<typename T>
ostream& operator<<(ostream &o, vector<T> v) {
    for (int i = 0; i < v.size(); i++)
        o << v[i] << (i+1<v.size()?" ":"");
    return o;
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
    int n, k;
    cin >> n >> k;
    vector<string> s(n);
    vector<string> t(n);
    for (int i = 0; i < n; i++) cin >> s[i];
    for (int i = 0; i < n; i++) cin >> t[i];
    map<string, int> m;
    vector<int> o(n);
    for (int i = 0; i < n; i++) {
        m[s[i]] = i;
    }
    for (int i = 0; i < n; i++) {
        o[m[t[i]]] = i;
    }
    bool ok = true;
    for (int i = 0; i < k; i++) {
        set<int> st;
        for (int j = i; j < n; j += k) {
            st.insert(o[j]);
        }
        for (int j = i; j < n; j += k) {
            ok &= st.count(j) == 1;
        }
    }
    cout << (ok?"Yes":"No") << endl;;
}