include <bits/stdc++.h>

using namespace std;

int main() {

int  m, n;
cin >> m >> n;
for (int i = 0; i < m; i++) {
	int k;
	cin >> k;
	if (k == n) {
		cout << "found";
		return 0;
	}

}
cout << "not found";
return 0;

}