#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define sz(s) (int)s.size()
#define N 10000005
ll n, m, q, a[N], ad[N], t, dp[N];
int main () {
ios::sync_with_stdio(0);cin.tie(0);
cin >> m >> q;
for(int i = 1; i <= m; i++){
cin >> a[i];
for(int j = a[i]; j <= 1e7 + 1; j += a[i]) {
ad[j - 1] = max(ad[j - 1], a[i] - 1);
}
ad[10000000] = max(ad[10000000], (10000000 % a[i]));
}
for(int i = 1e7; i >= 1; i--) {
ad[i] = max(ad[i], ad[i + 1] - 1);
}
for(int i = 1; i <= 1e7; i++) {
if(!ad[i] || dp[i - ad[i]] == -1) dp[i] = -1;
else dp[i] = dp[i - ad[i]] + 1;
}
for(int i = 1; i <= q; i++) {
int x, cnt = 0;
cin >> x;
if(dp[x] == -1) {
cout << "oo\n";
continue;
}
cout << dp[x] << '\n';
}
}
