#include <iostream>

/***
 Cautarea binara a unei valoari in vector
 ***/

using namespace std;

int A [ 100 ] ;

int main()
{
    int n , target ;
    cin >> n >> target ;
    for ( int i = 1 ; i <= n ; ++ i ) {
        cin >> A [ i ] ;
    }
    int st = 1 ;
    int dr = n ;
    bool found = false ;
    while ( st <= dr ) {
        int mij = ( st + dr ) / 2 ;
        if ( A [ mij ] > target ) {
            dr = mij - 1 ;
        }
        else {
            if ( A [ mij ] == target ) {
                found = true ;
                break ;
            }
            st = mij + 1 ;
        }
    }
    if ( found == true ) {
        cout << "apare" ;
    }
    else {
        cout << "nu apare" ;
    }
    return 0;
}