#include <iostream>
#include <vector>
#include <string>
#include <queue>

template <class T>
std::vector<T> vec(int len, T elem) { return std::vector<T>(len, elem); }

const std::vector<std::pair<int, int>> dxys{{0, 1}, {0, -1}, {1, 0}, {-1, 0}};

void solve() {
    int h, w;
    std::cin >> h >> w;

    auto ss = vec(h, vec(w, 0));
    for (auto& s : ss) {
        for (auto& x : s) std::cin >> x;
    }

    int q;
    std::cin >> q;
    while (q--) {
        int sx, sy, c;
        std::cin >> sx >> sy >> c;
        if (ss[--sx][--sy] == c) continue;

        std::queue<std::pair<int, int>> que;
        que.emplace(sx, sy);
        ss[sx][sy] = c;

        while (!que.empty()) {
            auto [x, y] = que.front();
            que.pop();

            for (auto [dx, dy] : dxys) {
                int nx = x + dx,
                    ny = y + dy;
                if (nx < 0 || h <= nx ||
                    ny < 0 || w <= ny ||
                    ss[nx][ny] == c) continue;

                ss[nx][ny] = c;
                que.emplace(nx, ny);
            }
        }
    }

    for (const auto& s : ss) {
        for (auto x : s) std::cout << x << " ";
        std::cout << "\n";
    }
}

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}