#include <bits/stdc++.h>

#pragma GCC optimize("O3")
//#define int long long

using namespace std;

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;

int sqN = sqrt(100100);

string rs(int a, int b) {
	return a == b ? "same" : (a < b ? "monitors" : "desks");
}

signed main(){
	cin.tie(0);
	ios::sync_with_stdio(0);
	int r, n; cin >> r >> n;
	string s; cin >> s;
	for (int i = 0; i < n; ++i) {
		string ns = "";
		for (int j = 0; j < s.size(); ++j) {
			int num = ((j == 0 ? 0 : s[j - 1] == 'X') << 2) + ((s[j] == 'X') << 1) + ((j + 1 == s.size() ? 0 : s[j + 1] == 'X'));
			if ((1 << num) & r) ns += 'X';
			else ns += '.';
		}
		cout << ns << '\n';
		s = ns;
	}
}