#include <bits/stdc++.h>

using namespace std;

using i64 = long long;

#define yn(pope) (pope ? "Yes" : "No")

#define rep(i, n, m) for (int i = (n); i < (m); i++)
#define rrep(i, n, m) for (int i = (n); i > m; i--)

#define IINF (1 << 30)
#define INF (1ll << 60)

#define all(v) v.begin(), v.end()

int main() {
  int N, K; cin >> N >> K;

  vector A(N, vector(N, '\0'));

  rep(i, 0, N) {
    rep(j, 0, N) {
      cin >> A[j][i];
    }
  }

  vector B(N * K, vector(N * K, '\0'));

  rep(i, 0, N * K) {
    rep(j, 0, N * K) {
      B[j][i] = A[j / K][i / K];
    }
  }

  rep(i, 0, N * K) {
    rep(j, 0, N * K) {
      cout << B[j][i];
    }

    cout << endl;
  }
  return 0;
}