import sys
input = sys.stdin.readline
from bisect import *

N, Q = map(int, input().split())
XW = []
for i in range(N):
    XW.append(list(map(int, input().split())))

XW.sort()
X, W = [], []
for i in range(N):
    X.append(XW[i][0])
    W.append(XW[i][1])

Wc = [0] * (N + 1)
XWc = [0] * (N + 1)
for i in range(N):
    XWc[i + 1] = XWc[i] + W[i] * X[i]
    Wc[i + 1] = Wc[i] + W[i]

query = list(map(int, input().split()))
for x in query:
    ans = 0
    ind = bisect_right(X, x)
    ans -= (Wc[-1] - 2 * Wc[ind]) * x
    ans += XWc[-1] - 2 * XWc[ind]
    print(ans)