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#include <iostream>
#include <string>
#include <stdio.h> 
 using namespace std;

 int main() {
  const long tmax=200001;
  long k,m; //pom
  long nk,mp,d; //lklien,lpiekar
  long long ta,sumto,t[tmax];// czas aktualny,
  
  cin >> nk >> mp;
  for (k=1; k<=nk; ++k)  cin >> t[k];

  for (m=1; m<=mp; ++m)
   { cin >> d;
     ta=0;
     sumto=0;

     for (k=1; k<=nk; ++k)
      { if (ta+d <= t[k]) ta=t[k];
        else { ta+=d;
               sumto+=(ta-t[k]);
             } //else
      } //k
        cout << sumto << endl;
    }
 }