#include<bits/stdc++.h>
using namespace std;
const int N = 1e6 + 10;
int n, m;
int a[N];
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> m;
    for(int i =1 ;i <= n;i++)cin >> a[i];

    while(m--)
    {
        int x;
        cin >> x;
        int l = 1, r = n;
        while(l < r)
        {
            int mid = (l + r) >> 1;
            if(a[mid] >= x)r = mid;
            else l = mid + 1;
        }

//      cout << l << " ";
        if(a[l] == x)cout << l << " ";
        else cout << "-1 ";
    }
    return 0;
}