#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n);i++)
#define sz(x) int(x.size())
typedef long long ll;
typedef pair<int,int> P;
int dx[] = {1,0,-1,0};
int dy[] = {0,1,0,-1};
int main(){
  int h, w;
  cin >> h >> w;
  vector<vector<int>> a(h, vector<int>(w));
  rep(i,h) rep(j,w) cin >> a[i][j];
  int q, cnt0 = 0, cnt1 = 0;
  cin >> q;
  int allc = -1;
  while (q--) {
    int r, c, x;
    cin >> r >> c >> x;
    r--; c--;
    if (cnt0 == h*w || cnt1 == h*w) {
      allc = x;
      continue;
    }
    if (a[r][c] == x) continue;

    queue<P> que;
    que.push(make_pair(r, c));
    a[r][c] = x;
    while (!que.empty()) {
      auto p = que.front(); que.pop();
      if (x == 0) cnt0++;
      else cnt1++;
      for (int i = 0; i < 4; i++) {
        int nx = p.first + dx[i], ny = p.second + dy[i];
        if (nx < 0 || ny < 0 || nx >= h || ny >= w) continue;
        if (a[nx][ny] == x) continue;
        a[nx][ny] = x;
        que.push(make_pair(nx,ny));
      }
    }
  }
  rep(i,h) {
    rep(j,w) cout << (allc != -1 ? allc : a[i][j]) << " ";
    cout << endl;
  }
  return 0;
}