#include <bits/stdc++.h>

#define rep(i,n) for(int i=0;i<(n);i++)

using namespace std;

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

int main(){
	int h,w; scanf("%d%d",&h,&w);
	vector B(h,vector(w,0));
	rep(i,h) rep(j,w) scanf("%d",&B[i][j]);

	int q; scanf("%d",&q);
	rep(_,q){
		int y0,x0,c; scanf("%d%d%d",&y0,&x0,&c); y0--; x0--;
		if(B[y0][x0]==c) continue;

		B[y0][x0]=c;
		queue<pair<int,int>> Q; Q.emplace(y0,x0);
		while(!Q.empty()){
			int y,x; tie(y,x)=Q.front(); Q.pop();
			rep(k,4){
				int y2=y+dy[k],x2=x+dx[k];
				if(0<=y2 && y2<h && 0<=x2 && x2<w && B[y2][x2]!=c){
					B[y2][x2]=c;
					Q.emplace(y2,x2);
				}
			}
		}
	}

	rep(i,h) rep(j,w) printf("%d%c",B[i][j],j<w-1?' ':'\n');

	return 0;
}