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

using ll = long long;

int main() {
	cin.tie(nullptr);
	ios::sync_with_stdio(false);

	ll h, w;
	cin >> h >> w;
	
	vector<string> s(h);
	for(auto&& x : s) cin >> x;
	
	for (int i=0; i<h; ++i) {
		for (int j=0; j<w; ++j) {
			if (s[i][j] != '9') continue;
			
			if (j > 0 && s[i][j-1] == 'y') {
				s[i][j-1] = 'Y';
				continue;
			}
			if (j < w-1 && s[i][j+1] == 'y') {
				s[i][j+1] = 'Y'; 
				s[i][j+5] = '?';
			}
		}
	}
	for (int i=0; i<h; ++i) {
		for (int j=0; j<w; ++j) {
			if (s[i][j] == '?') s[i][j] = 'y';
		}
	}

	for(auto&& x : s) cout << x << '\n';
	
	
	
}