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#include <iostream>
using namespace std;
#define MAXN 200000
long long int t[MAXN + 5];
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    for (int i = 0; i < n; i++)
    {
        cin >> t[i];
    }
    for (int i = 0; i < m; i++)
    {
        long long r;
        cin >> r;
        long long sum = 0;
        long long start = 0;
        long long koniec = 0;
        for (int j = 0; j < n; j++)
        {
            if (t[j] > koniec + r)
                start = t[j] - r;
            else start = koniec;
            koniec = start + r;
            sum += (koniec - t[j]);
        }
        cout << sum << "\n";
    }
}