import std.algorithm, std.conv, std.range, std.stdio, std.string;

void main()
{
  auto rd1 = readln.split.to!(size_t[]), h = rd1[0], w = rd1[1], hw = h * w;

  auto a = new int[](hw);
  foreach (i; 0..h) {
    auto rd2 = readln.split.to!(int[]);
    a[i*w..(i+1)*w][] = rd2[];
  }

  auto uf = UnionFind!size_t(hw);
  foreach (i; 0..hw) {
    if (i % w != w-1 && a[i] == a[i+1]) uf.unite(i, i+1);
    if (i / w != h-1 && a[i] == a[i+w]) uf.unite(i, i+w);
  }

  auto nn = new size_t[][](hw);
  foreach (i; 0..hw) {
    if (i % w != 0 && a[i] != a[i-1]) nn[uf.find(i)] ~= uf.find(i-1);
    if (i / w != 0 && a[i] != a[i-w]) nn[uf.find(i)] ~= uf.find(i-w);
    if (i % w != w-1 && a[i] != a[i+1]) nn[uf.find(i)] ~= uf.find(i+1);
    if (i / w != h-1 && a[i] != a[i+w]) nn[uf.find(i)] ~= uf.find(i+w);
  }

  foreach (i; 0..hw) {
    nn[i].sort();
    nn[i] = nn[i].uniq.array;
  }

  auto q = readln.chomp.to!size_t;
  foreach (_; 0..q) {
    auto rd3 = readln.split, r = rd3[0].to!size_t, c = rd3[1].to!size_t, x = rd3[2].to!int;
    auto i = uf.find((r-1) * w + (c-1));
    a[i] = x;

    foreach (j; nn[i]) {
      if (a[j] == x) {
        uf.unite(i, j);
        nn[i] ~= nn[j];
      }
    }
  }

  foreach (i; 0..h) {
    foreach (j; 0..w) {
      auto k = uf.find(i * w + j);
      write(a[k]);
      if (j < w-1) write(" ");
    }
    writeln();
  }
}

struct UnionFind(T)
{
  import std.algorithm, std.range;

  T[] p; // parent
  const T s; // sentinel
  const T n;

  this(T n)
  {
    this.n = n;
    p = new T[](n);
    s = n + 1;
    p[] = s;
  }

  T find(T i)
  {
    if (p[i] == s) {
      return i;
    } else {
      p[i] = find(p[i]);
      return p[i];
    }
  }

  void unite(T i, T j)
  {
    auto pi = find(i), pj = find(j);
    if (pi != pj) p[pj] = pi;
  }

  bool isSame(T i, T j) { return find(i) == find(j); }

  auto groups()
  {
    auto g = new T[][](n);
    foreach (i; 0..n) g[find(i)] ~= i;
    return g.filter!(l => !l.empty);
  }
}