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

int holes[256];

string gen_dots(int n){
  string s="";
  while (n--) s+=".";
  return s;
}

int main(){
  for (uint8_t c: "B") holes[c]=2;
  for (uint8_t c: "ADOPQR") holes[c]=1;

  string man,machine;
  cin>>man>>machine;
  int const n=machine.size();

  vector<vector<string>> word;
  for (int i=0; i<man.size(); i++){
    vector<string> letter;
    if (i%2==0) letter.push_back(gen_dots(n));
    letter.push_back(machine);
    for (int z=0; z<holes[man[i]]; z++){
      string dots=gen_dots(n);
      dots[0]=machine[0];
      dots[n-1]=machine[n-1];
      letter.push_back(dots);
      letter.push_back(machine);
    }
    for (int z=holes[man[i]]; z<2; z++){
      letter.push_back(gen_dots(n));
      letter.push_back(gen_dots(n));
    }
    if (i%2==1) letter.push_back(gen_dots(n));
    word.push_back(letter);
  }

  for (int i=0; i<word.size(); i++){
    for (int j=0; j<word[i].size(); j++){
      cout<<word[i][j]<<endl;
    }
  }
}