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#include <cstdio>


int main()
{
	int n, m;
	scanf("%d %d", &n, &m);

	long long int* t = new long long int[n];
	int* d = new int[m];

	for (int i = 0; i < n; ++i)
	{
		scanf("%lld", &t[i]);
	}
	for (int i = 0; i < m; ++i)
	{
		scanf("%d", &d[i]);
	}

	for (int i = 0; i < m; ++i)
	{
		long long int sum = 0;
		long long int currentTime = 0;

		for (int j = 0; j < n; ++j)
		{
			currentTime += d[i];
			if (currentTime > t[j])
			{
				int x = currentTime - t[j];
				sum += x;
			}
			else
			{
				currentTime = t[j];
			}
		}

		printf("%lld\n", sum);
	}

	return 0;
}