#include<bits/stdc++.h>
using namespace std;
#define ALL(x) x.begin(),x.end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define INF 1000000000
#define mod 1000000007
using ll=long long;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0};
int dy[]={0,1,0,-1};
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}

signed main(){
    cin.tie(0);
    ios::sync_with_stdio(0);

    int n,q;cin>>n>>q;
    vector<ll> x(n),w(n);
    vector<pair<ll,ll>> v(n);
    rep(i,n) cin>>v[i].first>>v[i].second;
    sort(ALL(v));
    rep(i,n) x[i]=v[i].first,w[i]=v[i].second;
    vector<ll> sumw(n+1,0),sumxw(n+1,0);
    rep(i,n){
        sumw[i+1]=sumw[i]+w[i];
        sumxw[i+1]=sumxw[i]+x[i]*w[i];
    }
    while(q--){
        ll p;cin>>p;
        int k=lower_bound(ALL(x),p)-x.begin();
        ll ans=0;
        ans+=p*sumw[k];
        ans-=p*(sumw[n]-sumw[k]);
        ans-=sumxw[k];
        ans+=sumxw[n]-sumxw[k];
        cout<<ans<<endl;
    }
    return 0;
}