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

ll decode(const vector<ll> & map) {
    if (map.size() == 1) return 1;
    ll result = 1;
    for (ll i = 1; i < map.size(); ++i) {
        ll diff = map[i] - map[i-1];
        if (diff == 1) {
            result = result * 2;
        } else {
            result = result * 2 + 1;
        }
    }
    return result;
}

vector<ll> encode(ll num) {
    vector<ll> result;
    result.push_back(0);
    while (num > 1) {
        if (num % 2 == 0) {
            result.push_back(result[result.size() - 1]+1);
        } else {
            result.push_back(result[result.size() - 1]-1);
        }
        num /= 2;
    }
    ll min = LLONG_MAX;
    ll max = LLONG_MIN;
    std::reverse(result.begin(), result.end());
    for (ll x : result) {
        min = std::min(min, x);
    }
    for (ll & x : result) {
        x -= min;

    }
    for (ll x : result) {
        max = std::max(max, x);
    }
    for (ll & x : result) {
        x = max - x;
    }
    return result;
}

vector<ll> getNumber() {
    ll count;
    cin >> count;
    vector<ll> result;
    for (ll i = 0; i < count; ++i) {
        string line;
        cin >> line;
        for (ll j = 0; j < line.size(); ++j) {
            if (line[j] == '#') {
                result.push_back(j);
                break;
            }
        }
    }

    return result;
}

void printResult(const vector<ll> & input) {
    ll max = LLONG_MIN;
    for (ll x : input) {
        max = std::max(max, x);
    }

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

    for (const auto & x : input) {
        string line(max + 1, '.');
        line[x] = '#';
        cout << line << '\n';
    }
}

int main() {
    vector<ll> first = getNumber();
    vector<ll> second = getNumber();
    vector<ll> result = encode(decode(first)+decode(second));
    printResult(result);
    return 0;
}