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

const int ac = 2e5 + 5;
long long A[ac];

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 >> A[i];
	while (m--)
	{
		long long a; cin >> a;
		long long s = 0, j = 0;
		for (int i = 0; i < n; i++)
		{
			j = max(j, A[i] - a);
			j += a;
			s += max(0ll, j - A[i]);
		}
		cout << s << '\n';
	}
}