#include <bits/stdc++.h>
using namespace std;
int main() {
	int n, k;
	cin >> n >> k;
	vector<string> s(n);
	for (int i = 0; i < n; i++) {
		cin >> s[i];
	}
	vector<string> t(n);
	for (int i = 0; i < n; i++) {
		cin >> t[i];
	}
	bool ok = true;
	for (int i = 0; i < k; i++) {
		vector<string> ts, tt;
		for (int j = i; j < n; j += k) {
			ts.push_back(s[j]);
			tt.push_back(t[j]);
		}
		sort(ts.begin(), ts.end());
		sort(tt.begin(), tt.end());
		if (ts != tt) ok = false;
	}
	if (ok) {
		cout << "Yes" << endl;
	} else {
		cout << "No" << endl;
	}
	return 0;
}