#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
using ll = long long;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3fLL;
const double EPS = 1e-8;
const int MOD = 1000000007;
// const int MOD = 998244353;
const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
const int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    cout << fixed << setprecision(20);
  }
} iosetup;

int main() {
  int n, q; cin >> n >> q;
  vector<int> x(n), w(n); REP(i, n) cin >> x[i] >> w[i];
  vector<int> idx(n);
  iota(ALL(idx), 0);
  sort(ALL(idx), [&](int a, int b) { return x[a] < x[b]; });
  {
    vector<int> nx(n);
    REP(i, n) nx[i] = x[idx[i]];
    x.swap(nx);
    REP(i, n) nx[i] = w[idx[i]];
    w.swap(nx);
  }
  // REP(i, n) cout << x[i] << ' ' << w[i] << '\n';
  vector<ll> sum(n + 1, 0);
  REP(i, n) sum[i + 1] = sum[i] + 1LL * x[i] * w[i];
  vector<int> w_sum(n + 1, 0);
  REP(i, n) w_sum[i + 1] = w_sum[i] + w[i];
  while (q--) {
    int X; cin >> X;
    int bor = lower_bound(ALL(x), X) - x.begin();
    // cout << bor << '\n';
    ll ans = 1LL * X * w_sum[bor] - sum[bor] + sum[n] - sum[bor] - 1LL * X * (w_sum[n] - w_sum[bor]);
    // cout << 1LL * X * w_sum[bor] << ' ' << sum[bor] + sum[n] << ' ' << sum[bor] << ' ' << 1LL * X * (w_sum[n] - w_sum[bor]) << '\n';
    cout << ans << '\n';
  }
  return 0;
}