#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, n) for (int i = a; i < (int)(n); i++)
using ll = long long;

int main()
{
    int h, w;
    cin >> h >> w;
    vector<string> grid(h);
    rep(i, 0, h) cin >> grid[i];
    string iwi1 = "yiwiy9", iwi2 = "9yiwiy";
    rep(i, 0, h)
    {
        rep(j, 0, w)
        {
            if (grid[i][j] == 'y' && j + 5 < w)
            {
                if (grid[i].substr(j, 6) == iwi1)
                {
                    grid[i][j + 4] = 'Y';
                }
            }
            if (grid[i][j] == '9' && j + 5 < w)
            {
                if (grid[i].substr(j, 6) == iwi2)
                {
                    grid[i][j + 1] = 'Y';
                }
            }
        }
    }
    rep(i, 0, h)
    {
        cout << grid[i] << endl;
    }
}