#include<bits/stdc++.h>
using namespace std;
int n,k,q;
int a[5005][5005];

int main(){
    freopen("breeding.in","r",stdin);
    freopen("breeding.out","w",stdout);
    cin>>n>>k>>q;
    for(int i=1;i<=k;i++){
        for(int j=1;j<=n;j++){
            cin>>a[i][j];
        }
    }
    int cnt=k;
    while(q--){
        int type,x,y;
        cin>>type>>x>>y;
        if(type==1){
            cnt++;
            for(int i=1;i<=n;i++){
                a[cnt][i]=max(a[x][i],a[y][i]);
            }
        }else if(type==2){
            cnt++;
            for(int i=1;i<=n;i++){
                a[cnt][i]=min(a[x][i],a[y][i]);
            }
        }else{
            cout<<a[x][y]<<"\n";
        }
    }
    return 0;
}