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#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <queue>
#include <stack>
#include <cstdio>
#include <set>
#include <map>
#include <string>
#include <queue>
#include <stack>
using namespace std;

typedef long long int LL;
typedef long double LD;
typedef vector<int> VI;
typedef vector<LL> VLL;
typedef vector<LD> VLD;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef vector<PII> VPII;

const int INF = 1000000001;
const LD EPS = 10e-9;

#define FOR(x, b, e) for(int x = b; x <= (e); ++x)
#define FORD(x, b, e) for(int x = b; x >= (e); --x)
#define REP(x, n) for(int x = 0; x < (n); ++x)
#define VAR(v, n) __typeof(n) v = (n)
#define ALL(c) (c).begin(), (c).end()
#define SIZE(x) ((int)(x).size())
#define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)
#define MP make_pair
#define PB push_back
#define ST first
#define ND second
#define abs(a) ((a)<0 ? -(a) : (a))
#define max(a, b) ((a) > (b) ? (a) : (b))
#define min(a, b) ((a) < (b) ? (a) : (b))

const int MAX_N = 200005;

int n, m;
LL t[MAX_N], d;

int main()
{
    ios_base::sync_with_stdio(0);
    
    cin >> n >> m;
    for(int i = 0; i < n; ++i)
    {
        cin >> t[i];   
    }
    
    for(int i = 0; i < m; ++i)
    {
        cin >> d;
        
        LL lastPos = 0, res = 0;
        for(int j = 0; j < n; ++j)
        {
            LL newPos = (t[j]-d >= 0 ? t[j] : t[j] + (d-t[j]));
            if(newPos < lastPos+d)
                newPos = lastPos+d;
            
            res += max(0, newPos-t[j]);           
            lastPos = newPos;    
            
            //cout << "j: " << j << ", newPos: " << newPos << ", res: " << res << endl; 
        } 
        
        cout << res << endl;      
    }
    
    //system("pause");
    return 0;
}