#include <bits/stdc++.h>

using namespace std;

void fast_io() {
	ios::sync_with_stdio(false);
	std::cin.tie(nullptr);
}

int main() {
	fast_io();
	int h, w;
	cin >> h >> w;
	vector<string> s(h);
	for (int i = 0; i < h; i++) {
		cin >> s[i];
		for (int j = 0; j < w; j++) {
			if (s[i][j] == '.') {
				continue;
			}
			if (s[i][j] == 'y') {
				s[i][j + 4] = 'Y';
			} else {
				s[i][j + 1] = 'Y';
			}
			j += 5;
		}
	}
	for (int i = 0; i < h; i++) {
		cout << s[i] << "\n";
	}
}