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#include <iostream>
using namespace std;

int main()
{
  ios_base::sync_with_stdio(false);  
  int n, m;
  cin>>n>>m;
  long long t[n];
  for (int i = 0; i < n; i++)
    cin>>t[i];
  int d[m];
  for (int i = 0; i < m; i++)
  {
    cin>>d[i];
  }
  for (int i = 0; i < m; i++)
  {
    long long h = 0, c = 0;
    for (int j = 0; j < n; j++)
    {
      h = max (h + d[i], t[j]);
      c += h - t[j];
    }
    cout<<c<<"\n";
  }
}