N,Q = map(int,input().split())
l = []
for _ in range(N):
    x,w = map(int,input().split())
    l.append((x,w))
l.sort(key = lambda x:x[0])
X = list(map(int,input().split()))
X = [(X[i],i) for i in range(Q)]
ans = [0] * Q
X.sort(key = lambda s:s[0])
hidari = [0] * (N+1)
migi = [0] * (N+1)
for i in range(N):
    hidari[i+1] = hidari[i] + l[i][1]
for i in range(N-1,-1,-1):
    migi[i] = migi[i+1] + l[i][1]
a = 0
x = X[0][0]
index = X[0][1]
for i in range(N):
    s,w = l[i]
    a += abs(s-x) * w
ans[index] = a
left = 0
now = x
for i in range(1,Q):
    x,index = X[i]
    while left < N and l[left][0] <= now:
        left += 1
    delta = x - now
    a += delta * hidari[left]
    right = left
    while right < N and l[right][0] <= x:
        a -= (l[right][0] - now) * l[right][1]
        a += (x - l[right][0]) * l[right][1]
        right += 1
    a -= delta * migi[right]
    ans[index] = a
    now = x
print(*ans,sep="\n")