#include <bits/stdc++.h>
using namespace std;

int main () {
    int n;  cin >> n;
    vector <int> a (n);
    copy_n (istream_iterator <int> (cin), n, begin (a));
    int x;  cin >> x;
    int lo = 0, hi = n - 1;
    while (hi - lo > 1) {
        int me = lo + (hi - lo) / 2;
        (a[me] < x ? lo : hi) = me;
    }
    cout << a[lo] << " < " << x << endl;
    cout << a[hi] << " >= " << x << endl;
}