#include <iostream>
#include <vector>
#include <algorithm>
#include <string>

using namespace std;

int main() {
  int n, k; cin >> n >> k;
  vector<string> s(n), t(n);
  for (int i = 0; i < n; i++) cin >> s[i];
  for (int i = 0; i < n; i++) cin >> t[i];
  //cout << "------" << endl;
  for (int i = 0; i < n; i++) {
    const auto it = find(t.begin(), t.end(), s[i]);
    const auto diff = abs(it - t.begin() - i);
    if (diff % k != 0) {
      cout << "No" << endl;
      return 0;
    }
  }
  cout << "Yes" << endl;
  return 0;
}