#include <bits/stdc++.h>
using namespace std;

int main() {
	bool tmp[10];
	char line[500];
	char out[500];
	memset(tmp, 0, 10 * sizeof(bool));
	int tmpPos = 0;
	int n, l;
	cin >> n >> l;
	while (n) {
		tmp[tmpPos] = n % 2;
		tmpPos++;
		n /= 2;
	}
	cin >> line;
	int len = strlen(line);
	for (int m = 0; m < l; m++) {
		int current[3];
		for (int i = 0; i < len; i++) {
			if (i == 0) {
				current[0] = 0;
			} else {
				if (line[i - 1] == 'X') {
					current[0] = 1;
				} else {
					current[0] = 0;
				}
			}
			if (line[i] == 'X') {
				current[1] = 1;
			} else {
				current[1] = 0;
			}
			if (i == n - 1) {
				current[2] = 0;
			} else {
				if (line[i + 1] == 'X') {
					current[2] = 1;
				} else {
					current[2] = 0;
				}
			}
			int idx = (current[0] * 4) + (current[1] * 2) + (current[2] * 1);
			if (tmp[idx] == 0) {
				out[i] = '.';
			} else {
				out[i] = 'X';
			}

		}
		out[len] = '\0';
		cout << out << endl;
		memcpy(line, out, len);
	}
	return 0;
}