N,Q = map(int,input().split())
XW = []
for _ in range(N):
    x, w = map(int,input().split())
    XW.append((x,w))
Qs = list(map(int,input().split()))
for q in Qs:
    cost = 0
    for item in XW:
        cost += abs(item[0] - q)*item[1]
    print(cost)