#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main()
{
    //cin.sync_with_stdio(false);
    //cout.sync_with_stdio(false);
    ll n=0, m=0, k=0, col, type, num;
    ll res=0;
    ll mas1[1001], mas2[100001]={};
    ll masc[10002] = {};
    ll mass[10002] = {};
    ll masc1[10002] = {};
    ll mass1[10002] = {};

    scanf("%d%d%d", &n, &m, &k);
    //cin >> n >> m >> k;
    for (ll i=1; i<=k; i++){
        scanf("%d%d%d", &type, &num, &col);
        //cin >> type >> num >> col;
        if (type==1){
            mass[num-1]=col;
            mass1[num-1]=i;
        }
        else{
            masc[num-1]=col;
            masc1[num-1]=i;
        }
    }
    for (ll i=0; i<n; i++){
        for (ll j=0; j<m; j++){
            if (mass1[i]+masc1[j]>0){
                if (mass1[i]>masc1[j])
                    mas2[i*m+j]=mass[i];
                else
                    mas2[i*m+j]=masc[j];

            }
        }
    }
    for (ll i=0; i<n; i++){
        for (ll j=0; j<m; j++){
            //printf("%d ", mas2[i*m+j]);
            cout << mas2[i*m+j] << ' ';
        }
        printf("\n");
    }
    return 0;
}