#include <bits/stdc++.h>

using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned;

using u128 = unsigned __int128;
using i128 = __int128;

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int N, K;
    std::cin >> N >> K;

    std::vector<std::string> A(N), B(N);
    for (int i = 0; i < N; i++) {
        std::cin >> A[i];
    }
    for (int i = 0; i < N; i++) {
        std::cin >> B[i];
    }

    for (int r = 0; r < K; r++) {
        std::vector<std::string> s, t;
        for (int i = r; i < N; i += K) {
            s.push_back(A[i]);
        }
        for (int i = r; i < N; i += K) {
            t.push_back(B[i]);
        }
        std::sort(s.begin(), s.end());
        std::sort(t.begin(), t.end());
        if (s != t) {
            std::cout << "No\n";
            return 0;
        }
    }
    std::cout << "Yes\n";

    return 0;
}