// Author: 4uckd3v - Nguyen Cao Duc
#include <bits/stdc++.h>
using namespace std;
#define cell(x, y) (((x) - 1) * n + (y))
typedef long long ll;
typedef pair<int, int> ii;
const int MAX_N = 2e5;
const int MAX_Q = 1e5;
const int MOD = 1e9 + 7;
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
struct Query {
int x, y, color;
Query() {};
Query(int x, int y, int color) : x(x), y(y), color(color) {};
};
struct DSU {
vector<int> par, sz, lef, rig, color;
int n;
int findSet(int u) {
return u == par[u] ? u : par[u] = findSet(par[u]);
};
int getColor(int u) {
return color[findSet(u)];
};
void setColor(int u, int c) {
color[findSet(u)] = c;
};
bool unionSet(int u, int v, int c) {
u = findSet(u), v = findSet(v);
if (sz[u] < sz[v]) swap(u, v);
color[u] = c;
if (u == v) return false;
sz[u] += sz[v];
par[v] = u;
lef[u] = min(lef[u], lef[v]);
rig[u] = max(rig[u], rig[v]);
return true;
};
DSU() {};
DSU(int n) : n(n) {
par.resize(n + 1), sz.resize(n + 1), color.resize(n + 1);
lef.resize(n + 1), rig.resize(n + 1);
for (int u = 1; u <= n; u++) {
par[u] = u;
sz[u] = 1;
lef[u] = u, rig[u] = u;
};
};
};
int m, n, q;
vector<Query> queries;
vector<vector<int>> a;
bool valid(int x, int y) {
return (x >= 1 && x <= m && y >= 1 && y <= n);
};
namespace SUBTASK_1 {
const int MN = 1e4;
bool vis[MN + 5];
vector<vector<int>> b;
bool checkSubtask() {
return m * n <= 1e4 && q <= 1e4;
};
void dfs(int x, int y, int color) {
vis[cell(x, y)] = true;
for (int i = 0; i < 4; i++) {
int u = x + dx[i];
int v = y + dy[i];
if (valid(u, v) && !vis[cell(u, v)] && b[u][v] == b[x][y]) dfs(u, v, color);
};
b[x][y] = color;
};
void Solve() {
b = a;
for (const Query &q : queries) {
int x = q.x, y = q.y, color = q.color;
for (int i = 1; i <= m * n; i++) vis[i] = false;
dfs(x, y, color);
};
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
cout << b[i][j] << " ";
};
cout << '\n';
};
};
}; // namespace SUBTASK_1
namespace SUBTASK_2 {
const int M = 1;
const int N = MAX_N;
const int Q = MAX_Q;
bool checkSubtask() {
return m <= M && n <= N && q <= Q;
};
void Solve() {
DSU DSU(n);
for (int i = 1; i <= n; i++) {
DSU.unionSet(i, i, a[1][i]);
};
for (int i = 1; i < n; i++) {
if (a[1][i] == a[1][i + 1]) {
DSU.unionSet(i, i + 1, a[1][i]);
};
};
for (const Query &q : queries) {
int idx = q.y, color = q.color;
DSU.unionSet(idx, idx, color);
int root = DSU.findSet(idx);
int l = DSU.lef[root], r = DSU.rig[root];
int newL = (l - 1 == 0 ? idx : DSU.findSet(l - 1));
int newR = (r + 1 > n ? idx : DSU.findSet(r + 1));
if (DSU.color[newL] == color) {
DSU.unionSet(newL, idx, color);
};
if (DSU.color[newR] == color) {
DSU.unionSet(newR, idx, color);
};
};
vector<int> &color = DSU.color;
for (int i = 1; i <= n; i++) cout << color[DSU.findSet(i)] << ' ';
cout << '\n';
};
}; // namespace SUBTASK_2
void printMatrix(int m, int n, const vector<vector<int>> &a) {
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
cout << a[i][j] << ' ';
};
cout << '\n';
};
};
namespace SUBTASK_3 {
const int SQRT = 448;
DSU dsu[SQRT + 5];
bool checkSubtask() {
for (Query &q : queries)
if (q.color > 1) return false;
return true;
};
vector<vector<int>> rotate(int m, int n, const vector<vector<int>> &a) {
vector<vector<int>> b(n + 2, vector<int>(m + 2, 0));
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
b[i][j] = a[j][i];
};
};
return b;
};
void updateQuery(DSU &dsu, DSU &rowDSU, int x, int y, int color) {
rowDSU.setColor(y, color);
dsu.setColor(cell(x, y), color);
int root = rowDSU.findSet(y);
int l = rowDSU.lef[root], r = rowDSU.rig[root];
int newL = (l - 1 == 0 ? y : rowDSU.findSet(l - 1));
int newR = (r + 1 > n ? y : rowDSU.findSet(r + 1));
if (rowDSU.color[newL] == color) {
rowDSU.unionSet(newL, y, color);
dsu.unionSet(cell(x, y), cell(x, newL), color);
};
if (rowDSU.color[newR] == color) {
rowDSU.unionSet(newR, y, color);
dsu.unionSet(cell(x, y), cell(x, newR), color);
};
};
void Solve() {
bool rot = false;
vector<vector<int>> b = a;
if (m > n) {
b = rotate(m, n, a);
swap(m, n);
rot = true;
};
for (int i = 1; i <= m; i++) {
dsu[i] = DSU(n);
};
DSU DSU(m * n);
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
DSU.color[cell(i, j)] = b[i][j];
dsu[i].color[j] = b[i][j];
if (i > 1 && b[i][j] == b[i - 1][j]) DSU.unionSet(cell(i, j), cell(i - 1, j), b[i][j]);
};
for (int j = 1; j < n; j++) {
if (b[i][j] == b[i][j + 1]) {
DSU.unionSet(cell(i, j), cell(i, j + 1), b[i][j]);
dsu[i].unionSet(j, j + 1, b[i][j]);
};
};
};
for (Query q : queries) {
if (rot) swap(q.x, q.y);
int y = q.y, color = q.color;
int curColor = DSU.getColor(cell(q.x, q.y));
if (color == curColor) continue;
for (int x = q.x; x >= 1; x--) {
if (dsu[x].getColor(y) == color) {
dsu[x].setColor(y, color);
DSU.unionSet(cell(x, y), cell(q.x, q.y), color);
break;
};
updateQuery(DSU, dsu[x], x, y, color);
};
for (int x = q.x + 1; x <= m; x++) {
if (dsu[x].getColor(y) == color) {
dsu[x].setColor(y, color);
DSU.unionSet(cell(x, y), cell(q.x, q.y), color);
break;
};
updateQuery(DSU, dsu[x], x, y, color);
};
};
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
b[i][j] = DSU.getColor(cell(i, j));
};
};
if (rot) {
b = rotate(m, n, b);
swap(m, n);
};
printMatrix(m, n, b);
};
}; // namespace SUBTASK_3
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
if (fopen("PAINT.INP", "r")) {
freopen("PAINT.INP", "r", stdin);
freopen("PAINT.OUT", "w", stdout);
};
cin >> m >> n;
a.resize(m + 2, vector<int>(n + 2, 0));
for (int i = 1; i <= m; i++) {
for (int j = 1; j <= n; j++) {
cin >> a[i][j];
};
};
cin >> q;
queries.resize(q);
for (Query &q : queries) cin >> q.x >> q.y >> q.color;
if (SUBTASK_1::checkSubtask())
return SUBTASK_1::Solve(), 0;
if (SUBTASK_2::checkSubtask())
return SUBTASK_2::Solve(), 0;
if (SUBTASK_3::checkSubtask())
return SUBTASK_3::Solve(), 0;
};
