#include <cstdlib>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
    int b[20];
    int *p;
    
    for (int k=0; k<20; k+=1)
       b[k]= k*k;

    p= &b[10];
    
    cout << p[-1] << endl;
    cout << *(p-2) << endl;
    
    system("PAUSE");
    return EXIT_SUCCESS;
}