#include <iostream>
#include <bits/stdc++.h>

using namespace std;
typedef long long int ll;


int main() {
    ll r, k;
    cin >> r >> k;
    string s;
    cin >> s;

    vector<bool> input(8);
    ll index = 0;
    while (r > 0) {
        if (r % 2 == 1) input[index] = true;
        r /= 2;
        index++;
    }
    vector<string> ret(k);
    for (ll i = 0; i < k; ++i) {
        string cur;
        for (ll j = 0; j < s.length(); ++j) {
            ll triplet = 0;
            if (j != 0 && s[j - 1] == 'X') triplet += 4;
            if (s[j] == 'X') triplet += 2;
            if (j != s.length() - 1 && s[j + 1] == 'X') triplet++;
            if(input[triplet]) cur += 'X';
            else cur += '.';
        }
        s = cur;
        cout << cur << endl;
    }

    return 0;
}