#include <cstdio>
#include <iostream>
#include <string>
#include <sstream>
#include <stack>
#include <algorithm>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <cstdlib>
#include <bitset>
#include <tuple>
#include <assert.h>
#include <deque>
#include <bitset>
#include <iomanip>
#include <limits>
#include <chrono>
#include <random>
#include <array>
#include <unordered_map>
#include <functional>
#include <complex>

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

constexpr long long MAX = 5100000;
constexpr long long INF = 1LL << 60;
constexpr int inf = 1 << 28;
constexpr long long mod = 1000000007LL;
//constexpr long long mod = 998244353LL;

using namespace std;
typedef unsigned long long ull;
typedef long long ll;


int main()
{
    /*
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
   */

    int N, Q; scanf("%d %d", &N, &Q);
    vector<pair<ll, ll>> vp(N); for (int i = 0; i < N; i++) scanf("%lld %lld", &vp[i].first, &vp[i].second);
    sort(vp.begin(), vp.end());
    vector<ll> sw(N + 1), sx(N + 1);
    for (int i = 0; i < N; i++) sw[i + 1] = sw[i] + vp[i].second, sx[i + 1] = sx[i] + vp[i].first * vp[i].second;
    while (Q--) {
        ll x; scanf("%lld", &x);
        auto itr = lower_bound(vp.begin(), vp.end(), make_pair(x, -INF));
        ll id2 = itr - vp.begin();
        ll res = 0;
        if (id2 == 0) {
            res = sx.back() - x  * sw.back();
        }
        else {
            res += (x * sw[id2] - sx[id2]) ;
            res += (sx.back() - sx[id2]) - x  * (sw.back() - sw[id2]);
        }
        printf("%lld\n", res);
    }
    return 0;

}