#include <iostream>
#include <vector>
#include <algorithm>

int main() {
    size_t n;
    std::cin >> n;
    size_t w_max = 0, h_max = 0;
    std::vector<std::pair<size_t, size_t>> tr;
    tr.reserve(n);
    for (size_t i = 0; i < n; ++i) {
        size_t part_n, part_m;
        std::cin >> part_n >> part_m;
        tr.push_back({part_n, part_m});
        w_max += 2 * (part_m + part_n - 1) - 1;
        h_max = std::max(h_max, (part_m + part_n - 1) * (part_m + part_n) / 2 - (part_m - 1) * (part_m) / 2);
    }
    w_max += n - 1;
    size_t center_l, center_curr;
    std::vector<std::vector<bool>> picture(h_max, std::vector<bool>(w_max, false));
    std::vector<int> ban(h_max + 1);
    size_t ind = 0;
    center_curr = (tr[ind].first + tr[ind].second - 1) - 1;
    size_t ii = 0;
    for (size_t i = 0; i < tr[ind].first; ++i) {
        for (size_t j = 0; j < tr[ind].second + i; ++j) {
            for (size_t k = 0; k <= j; ++k) {
                picture[ii][center_curr + k] = true;
                picture[ii][center_curr - k] = true;
            }
            if (ii == 0) {
                ban[ii] = center_curr + 2;
            } else if (j + 1 == tr[0].second + i) {
                ban[ii] = center_curr + j + 1;
                ban[ii + 1] = ban[ii];
            } else if (j == 0) {

            } else {
                ban[ii] = center_curr + j + 2;
            }
            ++ii;
        }
    }
    center_l = center_curr;
    center_curr = center_l + 1;
    ind = 1;
    ii = 0;
    for (size_t i = 0; i < tr[ind].first; ++i) {
        for (size_t j = 0; j < tr[ind].second + i; ++j) {
            if (center_curr <= ban[ii] + j) {
                center_curr =  j + ban[ii] + 1;
            }
            ++ii;
        }
    }
    size_t w = w_max;
    for (size_t t = 1; t < n; ++t) {
        size_t ind = t;
        size_t ii = 0;
        for (size_t i = 0; i < tr[ind].first; ++i) {
            for (size_t j = 0; j < tr[ind].second + i; ++j) {
                for (size_t k = 0; k <= j; ++k) {
                    picture[ii][center_curr + k] = true;
                    picture[ii][center_curr - k] = true;
                }
                if (ii == 0) {
                    ban[ii] = center_curr + 2;
                } else if (j + 1 == tr[0].second + i) {
                    ban[ii] = center_curr + j + 1;
                    ban[ii + 1] = ban[ii];
                } else if (j == 0) {

                } else {
                    ban[ii] = center_curr + j + 2;
                }
                ++ii;
            }
        }
        w = center_curr + tr[ind].first + tr[ind].second - 1;
        if (t + 1 == n) {
            break;
        }
        center_l = center_curr;
        center_curr = center_l + 1;
        ind = t + 1;
        ii = 0;
        for (size_t i = 0; i < tr[ind].first; ++i) {
            for (size_t j = 0; j < tr[ind].second + i; ++j) {
                if (center_curr <= ban[ii] + j) {
                    center_curr = j + ban[ii] + 1;
                }
                ++ii;
            }
        }
    }
    for (size_t i = 0; i < h_max; ++i) {
        for (size_t j = 0; j < w; ++j) {
            if (picture[i][j]) {
                std::cout << '#';
            } else {
                std::cout << '.';
            }
        }
        std::cout << "\n";
    }
    return 0;
}