#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 4000000000000000001LL

int main(){
	
	int N,K;
	cin>>N>>K;
	
	vector<vector<string>> s(K),t(K);
	rep(i,N){
		string a;
		cin>>a;
		s[i%K].push_back(a);
	}
	rep(i,N){
		string a;
		cin>>a;
		t[i%K].push_back(a);
	}
	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;
}