typedef unsigned int size_t;
extern void *malloc (size_t __size) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__)) ;
extern void __VERIFIER_error() __attribute__ ((__noreturn__));
void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: __VERIFIER_error(); } }
struct _S
{
 int *p;
 int n;
};
typedef struct _S S;
S *a[100000];
extern int user_read();
int main()
{
 int i;
 for(i = 0; i < 100000; i++)
 {
  S *s1 = (S *)malloc(sizeof(S));
  s1 -> n = user_read();
  if(s1 ->n == 1)
  {
   s1 -> p = (int *)malloc(sizeof(int));
  }
  else
  {
   s1 -> p = (void *)0;
  }
  a[i] = s1;
 }
 for(i = 0; i < 100000; i++)
 {
  S *s2 = a[i];
  if(s2 ->n == 1)
  {
   __VERIFIER_assert(s2 -> p != (void *)0);
  }
 }
 return 0;
}