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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector<string> s(n), t(n);
    for(auto &&v : s) cin >> v;
    for(auto &&v : t) cin >> v;
    const int r = (n + k - 1) / k;
    vector<string> s2(r), t2(r);
    for(int i = 0; i < k; i++){
        int cur = 0;
        for(int j = i; j < n; j += k){
            s2[cur] = s[j];
            t2[cur++] = t[j];
        }
        sort(s2.begin(), s2.end());
        sort(t2.begin(), t2.end());
        if(s2 != t2){
            cout << "No\n";
            return 0;
        }
    }
    cout << "Yes\n";
}