#include<bits/stdc++.h>
using namespace std;

int n,k;
string s[100000],t[100000];
int main(){
    cin >> n >> k;
    for(int i=0;i<n;i++){
        cin >> s[i];
    }
    for(int i=0;i<n;i++){
        cin >> t[i];
    }
    for(int i = 0; i < k; i++){
        vector<string> s1,s2;
        for(int j = i; j < n; j += k){
            s1.push_back(s[j]);
            s2.push_back(t[j]);
        }
        sort(s1.begin(),s1.end());
        sort(s2.begin(),s2.end());
        if(s1 != s2){
            cout << "No" << endl;
            return 0;
        }
    }
    cout << "Yes" << endl;
}