import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int n = Integer.parseInt(sa[0]);
		int k = Integer.parseInt(sa[1]);
		String[] s = new String[n];
		for (int i = 0; i < n; i++) {
			s[i] = br.readLine();
		}
		String[] t = new String[n];
		for (int i = 0; i < n; i++) {
			t[i] = br.readLine();
		}
		br.close();

		for (int i = 0; i < k; i++) {
			Map<String, Integer> map = new HashMap<>();
			int idx = 0;
			for (int j = i; j < n; j += k) {
				map.put(t[j], idx);
				idx++;
			}
			for (int j = i; j < n; j += k) {
				if (!map.containsKey(s[j])) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	}
}