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

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m, b;
    cin >> n >> m;
    unsigned long long A[n], pk = 0, k = 0, w;
    for(int i = 0; i < n; i++)
        cin >> A[i];
    for(int i = 0; i < m; i++){
        cin >> b;
        w = 0;
        k = 0;
        pk = 0;
        for(int j = 0; j < n; j++){
            k += b;
            if(k < A[j])
                k = A[j];
            else
                k = pk + b;
            pk = k;
            w += (k - A[j]);
       }
        cout << w << '\n';
    }
    return 0;
}