#include<bits/stdc++.h>
using namespace std;
int main(){
	set<int>s;
	//write your code here......
	int n, m, x, a;
	cin >> n >> m;

	for (int i =0; i < n; ++i) {
		cin >> a;
		s.insert(a);
	}

	while (m--) {
		cin >> x;
		auto p = s.upper_bound(x);
		if (p != s.end()) {
			cout << *p << endl;
		} else {
			cout << -1 << endl;
		}
	}

	return 0;
}