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

int getHash(string & s) {
    int i = -1;
    while(true)if(s[++i] == '#') return i;
}



int parseNum() {
    int N;
    cin >> N;
    vector<int> v(N);
    for(auto &a : v) {
        string s;
        cin >> s;
        a = getHash(s);
    }
    int result = 1;
    for(int i =1; i < N; i++) {
        result *= 2;
        if(v[i] < v[i-1]) result++;
    }
    return result;
}


void printNum(int i) {
    int m = 0, M=1;
    vector<int> v;
    v.push_back(0);
    while (i>1)
    {
        v.push_back(v.back() + ((i&1) ? 1 : -1));
        m = min(m, v.back());
        M = max(M, v.back()+1);
        i /= 2;
    }

    for(auto &a: v) a -= m;
    M-=m;

    cout << v.size() << '\n';

    for(int i = v.size()-1; i >= 0; i--) {
        string s(M, '.');
        s[v[i]] = '#';
        cout << s << '\n';

    }
}



signed main() {




    int a = parseNum(), b = parseNum();
    printNum(a+b);
}