#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
using pll = pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
constexpr char ln = '\n';
//constexpr long long MOD = 1000000007;
constexpr long long MOD = 998244353;
template<class T1, class T2> inline bool chmax(T1 &a, T2 b) { if (a < b) { a = b; return true;} return false; }
template<class T1, class T2> inline bool chmin(T1 &a, T2 b) { if (a > b) { a = b; return true;} return false; }
inline int popcount(int x) {return __builtin_popcount(x);}
inline int popcount(long long x) {return __builtin_popcountll(x);}
void print() { cout << "\n"; }
template<class T, class... Args>
void print(const T &x, const Args &... args) {
    cout << x << " ";
    print(args...);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////

struct UnionFind {
    int N;
    vector<int> node;

    UnionFind(){}
    UnionFind(int N) : N(N), node(N,-1) {}

    void init(int x) {
        node.assign(x,-1);
        N = x;
    }

    bool merge(int x, int y) {
        x = root(x); y = root(y);
        if (x == y) return false;
        if (node[x] > node[y]) swap(x,y);
        node[x] += node[y];
        node[y] = x;
        N--;
        return true; 
    }

    bool same(int x, int y) {return root(x) == root(y);}

    int root(int x) {
        if (node[x] < 0) return x;
        return node[x] = root(node[x]);
    }

    int size(int x) {return -node[root(x)];}

    int count() const {return N;}
};

const int dx[4] = {-1,0,1,0};
const int dy[4] = {0,-1,0,1};

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    int H,W; cin >> H >> W;
    vector<vector<int>> A(H, vector<int>(W));
    rep(i,H) rep(j,W) cin >> A[i][j];

    UnionFind uf(H*W);
    auto mer=[&]() {
        rep(x,H) rep(y,W) {
            rep(k,4) {
                int nx = x + dx[k];
                int ny = y + dy[k];
                if (nx < 0 or nx >= H or ny < 0 or ny >= W) continue;
                if (A[x][y]==A[nx][ny]) uf.merge(x*W+y,nx*W+ny); 
            }
        }
    };

    mer();
    int Q; cin >> Q;
    int all = -1;
    while (Q--) {
        int h,w,c; cin >> h >> w >> c;
        --h; --w;
        if (A[h][w]==c) continue;
        if (uf.size(h*W+w)==H*W) {
            all = c;
            continue;
        }
        rep(x,H) rep(y,W) {
            if (uf.same(x*W+y,h*W+w)) A[x][y] = c; 
        }
        mer();  
    }

    if (~all) {
        rep(i,H) {
            rep(j,W) cout << all << " ";
            cout << ln;
        }
    } else {
        rep(i,H) {
            rep(j,W) cout << A[i][j] << " ";
            cout << ln;
        }
    }
}