1212

#include <iostream>
using namespace std;
int main(){
    int size=101;
    char **a=new char*[size];
    for (int i=0;i<size;i++){
        a[i]=new char[size];
        for(int j=0;j<size;j++){
            a[i][j]='N';

        }
    }
    int n;
    cin >> n;
    for(int i=0;i<n;i++){
        int q;
        cin >> q;
        if(q==1){
            int x, y;
            char c;
            cin >> x;
            cin >> y;
            cin >> c;
            a[x%100019][y%100019]=c;
        }
        else{
            int x,y;
            cin >> x >> y;
            cout << a[x%100019][y%100019] << endl;
        }
    }
    for (int i=0;i<size;i++){
        delete [] a[i];
    }
    delete [] a;
    return 0;
}