#include <bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
map<pair<int,int>,int> mp; 
signed main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n,m,T;
	cin>>n>>m>>T;
	while(T--){
		int op;
		cin>>op;
		if(op==1){
			int i,j,k;
			cin>>i>>j>>k;
			mp[{i,j}]=k;
		}
		if(op==2){
			int i,j;
			cin>>i>>j;
			cout<<mp[{i,j}]<<endl;
		}
	}
	return 0;
}