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#include <stdio.h>

#define BUF_READ 5000000
#define BUF_BORDER 100
#define BUF_SIZE (BUF_READ+BUF_BORDER+1)

char buf[BUF_SIZE];
char *buf_cur;
char *buf_end;
int file_finished;
unsigned int bytes_write;

int buf_init()
{
        int bytes_read;
        
        bytes_read = fread( buf, 1, BUF_READ, stdin );
        buf_cur = buf;
        buf_end = buf + bytes_read;
        if (bytes_read < BUF_READ) {
                file_finished = 1;
        } else {
                file_finished = 0;
        }

        return bytes_read;
}

void buf_findNextNumber()
{
        while ( *buf_cur < '0' || *buf_cur > '9') {
                buf_cur++;
        }
}

void read_buffer_if_needed(int border)
{
        int i, d, bytes_read;

        if (file_finished == 1) {
                return;
        }

        d = buf_end - buf_cur;
        if (d > border) {
                return;
        }

        for(i = 0; i < d; ++i) {
                buf[i] = buf_cur[i];
        }

        bytes_read = fread( buf+d, 1, BUF_READ, stdin );
        if (bytes_read < BUF_READ) {
                file_finished = 1;
        }
        buf_cur = buf;
        buf_end = buf+d+bytes_read;

}

unsigned long long buf_getNextNumber()
{
        unsigned long long number = 0;

        read_buffer_if_needed(BUF_BORDER);

        buf_findNextNumber();
        number = *buf_cur - '0';
        buf_cur++;
        while( *buf_cur >= '0' && *buf_cur <= '9') {
                number = number*10 + *buf_cur - '0';
                buf_cur++;
        }
        return number;        
}

void buf_reset()
{
        buf_cur = buf;
        bytes_write = 0;
}

void buf_write_ll(unsigned long long a)
{
        char l_buf[24];
        int i;

        i = 0;
        while(a > 0) {
                l_buf[i] = (a % 10) + '0';
                a /= 10;
                i++;
        }

        if (i == 0) {
                i = 1;
                l_buf[0] = '0';
        }

        i--;
        while(i >= 0) {
                *buf_cur++ = l_buf[i--];
                bytes_write++;
        }
        *buf_cur = '\n';
        buf_cur++;
        bytes_write++;
}


#define T_MAX_SIZE 200002

unsigned long long t[T_MAX_SIZE];
unsigned int d[T_MAX_SIZE];
unsigned long long t2[T_MAX_SIZE*2];

unsigned int n, m, n2;

#define MAX_D 1000002

unsigned long long prev_res[MAX_D];
char prev_res_calc[MAX_D];

/*
unsigned long long calcSum(unsigned int d)
{
        unsigned long long sum = 0;
        unsigned long long fft = 0;
        unsigned int i;
        
        for (i = 0; i < n; ++i) {
                if (t[i] >= fft) {
                        if (t[i] - fft >= d) {
                                //sum += 0;
                                fft = t[i];
                        } else {
                                // t[i] - fft < d
                                sum += (fft + d) - t[i];
                                fft += d;
                        }
                } else {
                        // t[i] < fft
                        sum += (fft + d) - t[i];
                        fft += d;
                }
        }
        return sum;
}
*/

unsigned long long calcSum(unsigned int d)
{
        unsigned long long sum = 0;
        unsigned long long fft = 0;
        unsigned int i;
        
        for (i = 0; i < n2; i += 2) {
                if (t2[i] >= fft && t2[i] - fft >= d) {
                        //sum += 0;
                        fft = t2[i];
                } else {
                        // t[i] < fft or t[i] - fft < d
                        fft += d;
                        sum += fft - t2[i];
                }
                if (t2[i+1] > 1) {
                        unsigned long long cl = t2[i+1]-1;

                        sum += (fft - t2[i])*cl + cl*(cl+1)*d/2;
                        fft += cl*d;
                }

        }
        return sum;
}

void convert_t()
{
        int i, i2;

        t2[0] = t[0];
        t2[1] = 1;
        i2 = 0;

        for(i = 1; i < n; ++i) {
                if (t[i] == t2[i2]) {
                        t2[i2+1]++;
                } else {
                        i2 += 2;
                        t2[i2] = t[i];
                        t2[i2+1] = 1;
                }
        }
        n2 = i2+1;
}

int main()
{
        unsigned int i;
        unsigned long long result;

        n = (unsigned int) buf_getNextNumber();
        m = (unsigned int) buf_getNextNumber();

        for(i = 0; i < n; ++i) {
                t[i] = buf_getNextNumber();
        }

        for(i = 0; i < m; ++i) {
                d[i] = (unsigned int) buf_getNextNumber();
        }

        convert_t();

//        for(i = 0; i < n2; i += 2) {
//                printf("%llu (%llu)\n", t2[i], t2[i+1]);
//        }


        buf_reset();
        for(i = 0; i < m; ++i) {
                //printf("%llu\n", calcSum(d[i]));
                unsigned long long cd = d[i];

                if (prev_res_calc[cd]) {
                        buf_write_ll(prev_res[cd]);
                        continue;
                }

                result = calcSum(cd);
                buf_write_ll(result);

                prev_res_calc[cd] = 1;
                prev_res[cd] = result;
        }

        *buf_cur = '0';
        fwrite( buf, 1, bytes_write, stdout );

        return 0;
}