void main() {
    int start = 0;
    int* a = new int[4];
    int** b = &a;
    int* c = *b;
    print a == c;
    print &start != a;
    
    print length(a);
    print length(b);
    print length(c);
    
    a[0] = 50;
    a[1] = 60;
    a[2] = 70;
    a[3] = 80;
    
    print a[0];
    print a[1];
    print a[2];
    print a[3]; 
       
    print *a;
    
    delete a;
}