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#include <iostream>

using namespace std;

long long T[200001];

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
    int N,M;
    int D;
    cin>>N>>M;
    for(int i = 1;i <= N;i++)
    {
        cin>>T[i];
    }
    for(int _ = 0;_ < M;_++)
    {
        cin>>D;
        int Result = 0;
        int Time = D;
        for(int i = 1; i<= N;i++)
        {
            if(Time > T[i])Result += Time - T[i];
            Time = T[i] + D;
        }
        cout<<Result<<'\n';
    }

}