import sys

input = sys.stdin.buffer.readline

N, Q = map(int, input().split())
freight = [tuple(map(int, input().split())) for _ in range(N)]
X = tuple(map(int, input().split()))

cost_x0 = sum(x * w for x, w in freight)
queries = []
for x, w in freight:
    queries.append((x, 1, w))
for i, x in enumerate(X):
    queries.append((x, 2, i))

queries.sort()
cost = cost_x0
cur_idx = 0
left_weight, right_weight = 0, sum(w for _, w in freight)
ans = [0] * Q
for q in queries:
    x = q[0]
    cost += left_weight * (x - cur_idx)
    cost -= right_weight * (x - cur_idx)
    cur_idx = x
    if q[1] == 1:
        left_weight += q[2]
        right_weight -= q[2]
    else:
        # assert q[1] == 2
        ans[q[2]] = cost
print(*ans, sep='\n')