#include <iostream>
#include <cstdio>
#include <vector>
#include <utility>
#include <queue>

using namespace std;

const int dr[4] = {1, 0, -1, 0};
const int dc[4] = {0, 1, 0, -1};

int h, w, q;
vector< vector<int> > a;

void paint(int r, int c, int x) {
	vector< vector<bool> > painted(h, vector<bool>(w, false));

	int base_color = a[r][c];
	if (base_color == x) {
		return;
	}

	queue<pair<int, int> > que;
	que.push(make_pair(r, c));


	while (!que.empty()) {
		auto pos = que.front();
		que.pop();

		a[pos.first][pos.second] = x;
		painted[pos.first][pos.second] = true;

		for (int i = 0; i < 4; i++) {
			int nr = pos.first + dr[i];
			int nc = pos.second + dc[i];

			if (nr < 0 || h <= nr || nc < 0 || w <= nc) {
				continue;
			}
			if (painted[nr][nc]) {
				continue;
			}
			if (a[nr][nc] != base_color) {
				continue;
			}

			que.push(make_pair(nr, nc));
		}
	}
}

int main() {

	cin >> h >> w;
	a.assign(h, vector<int>(w, 0));
	for (int i = 0; i < h; i++) {
		for (int j = 0; j < w; j++) {
			cin >> a[i][j];
		}
	}
	cin >> q;
	int r, c, x;

	for (int i = 0; i < q; i++) {
		cin >> r >> c >> x;
		paint(r-1, c-1, x);
	}


	for (int i = 0; i < h; i++) {
		cout << a[i][0];
		for (int j = 1; j < w; j++) {
			cout << " " << a[i][j];
		}
		cout << endl;
	}

	return 0;
}