#include<bits/stdc++.h> using namespace std; typedef long long ll; typedef unsigned long long ull; ll _i=0; #define ffn(x) _i=x #define llll pair<ll , ll> #define stitr set<llll>::iterator #define fora(y,x) for(ll y=_i;x>y;y++) #define pb push_back #define pf push_front #define debu cout << "hello\n" #define fi first #define sec second #define all(a) a.begin() , a.end() const ll limit = 1e13 + 7; const ll ous=1e6 + 5; const ll dx[4] = {1 , -1 , 0 , 0} , dy[4] = {0,0,-1,1}; void solve(){ ll n , m;cin >> n >> m; string h[n] , y[n];fora(i,n){ cin >> h[i]; y[i] = h[i]; } fora(i,n){ fora(j,m){ if(h[i][j] == '#'){ y[i+1][j] = '#'; y[i+1][j+1] = '#'; y[i][j+1] = '#'; } } } fora(i,n){ cout << y[i] << "\n"; } return; } signed main(){ ios_base::sync_with_stdio(false);cin.tie(NULL); ll t=1; //cin >> t; while(t--){ solve(); } return 0; }