#include"bits/stdc++.h"
#define int long long
#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=(a);i<(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)
#define All(x) (x).begin(),(x).end()
#define rAll(x) (x).rbegin(),(x).rend()
using namespace std;
typedef pair<int,int> P;
typedef vector<int> vi;
typedef vector<vi> vvi;
const int mod=1000000007;
int gcd(int x,int y){return y?gcd(y,x%y):x;}
int lcm(int x,int y){return x*y/gcd(x,y);}
int roundup(int a,int b){return	(a-1)/b+1;}

signed main(){
	int N,Q;
	cin>>N>>Q;
	vector<int> x(N),w(N),X(Q);
	rep(i,N) cin>>x[i]>>w[i];
	rep(i,Q) cin>>X[i];
	vector<int> S(N+1);
	int res=0;
	rep(i,N){
		S[i+1]=S[i]+w[i];
		res+=llabs(X[0]-x[i])*w[i];
	}
	cout<<res<<endl;
	int j=0;
	rep(i,1,Q){
		int l=j;
		while(j<N&&X[i]>=x[j]){
			res-=(x[j]-X[i-1])*w[j];
			res+=(X[i]-x[j])*w[j];
			j++;
		}
		int r=j;
		res+=(X[i]-X[i-1])*(S[l]-(S[N]-S[r]));
		cout<<res<<endl;
	}
}