#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vb = vector<bool>;
using vvb = vector<vb>;
#define LLINF 9223372036854775807
#define MOD ll(998244353)
#define all(x) (x).begin(),(x).end()
#define dbg(x) cerr<<#x<<": "<<x<<endl
const double PI = 3.14159265358979;


int main(){
    ll n, k;
    string s, t;
    cin >> n >> k;
    vector<set<string>> vs(k);
    vector<set<string>> vt(k);
    for(int i = 0; i < n; i++){
        cin >> s;
        vs[i%k].insert(s);
    }
    for(int i = 0; i < n; i++){
        cin >> t;
        vt[i%k].insert(t);
    }
    ll isyes = true;
    for(int i = 0; i < k; i++){
        if(vs[i] != vt[i]) isyes = false;
    }
    if(isyes){
        cout << "Yes" << endl;
    }else{
        cout << "No" << endl;
    }
    return 0;

}