using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (h, w) = (c[0], c[1]);
        var s = SList(h);
        var ans = new char[h][];
        var l = "yiwiy9";
        var r = "9yiwiy";
        for (var i = 0; i < h; ++i)
        {
            ans[i] = s[i].ToCharArray();
            for (var j = 0; j + 6 <= w; ++j)
            {
                var flg = true;
                for (var b = 0; b < 6; ++b) if (ans[i][j + b] != l[b]) flg = false;
                if (flg) ans[i][j + 4] = 'Y';
                flg = true;
                for (var b = 0; b < 6; ++b) if (ans[i][j + b] != r[b]) flg = false;
                if (flg) ans[i][j + 1] = 'Y';
            }
        }
        WriteLine(string.Join("\n", ans.Select(ai => string.Concat(ai))));
    }
}