#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int n, k;
  cin >> n >> k;
  vector<vector<string>> s(k), t(k);
  rep(i, n) {
    string x;
    cin >> x;
    s[i % k].push_back(x);
  }
  rep(i, n) {
    string x;
    cin >> x;
    t[i % k].push_back(x);
  }
  rep(i, k) {
    sort(s[i].begin(), s[i].end());
    sort(t[i].begin(), t[i].end());
    if (s[i] != t[i]) {
      cout << "No" << endl;
      return 0;
    }
  }
  cout << "Yes" << endl;
  return 0;
}