#include
#include
using namespace std;
int main()
{
int num;
cin>>num;
int Array[num];
for (int i = 0; i < num; i++)
{
cin>>Array[num];
}
int key;
cin>>key;
auto it=(Array,Array+num,key);
int index=it-*Array;
if (index==num)
{
cout<<key<<“not present”;
}
else
{
cout<<"present at "<<index;
}
return 0;
}