///HELLO THERE~!
///CODED BY MD SADMAN MEHEDI SIVAN [IUT CSE(SWE)-19]

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

#define FASTIO          ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define read            freopen("blue.txt","r",stdin);
#define write           freopen("red.txt","w",stdout);

using ll=long long;
using ull=unsigned long long;
const double pi = 2*acos(0.0);


int main()
{

    long long n,m;
    cin>>n>>m;


    vector<long long>x,y;
    vector<long long>::iterator it;


    for(ll i=0; i<n; i++)
    {
        ll d;
        cin>>d;
        x.push_back(d);
    }

    sort(x.begin(),x.end());

    for(ll i=0; i<m; i++)
    {
        ll c;
        cin>>c;
        y.push_back(c);
    }


    for(ll i=0; i<m; i++)
    {
        it=lower_bound(x.begin(),x.end(),y[i]);

        if(it==x.begin() && x[0]==y[i])
        {
            cout<<x[0]<<endl;

           x.erase(it);

        }
        else if(it==x.begin())
            cout<<"-1"<<endl;

        else
        {
            it--;
            cout<<*it<<endl;

           x.erase(it);
        }
    }





    return 0;


}