import bisect
N, Q = map(int,input().split())
B = sorted([list(map(int,input().split())) for k in range(N)])
X = list(map(int,input().split()))

K = [B[k][0]*B[k][1] for k in range(N)]
T = [0]*N
T[0] = K[0]
for k in range(1,N):
    T[k] = T[k-1] + K[k]

W = [B[k][1] for k in range(N)]
U = [0]*N
U[0] = W[0]
for k in range(1,N):
    U[k] = U[k-1] + W[k]


P = [B[k][0] for k in range(N)]
def keisan(x):
    p = bisect.bisect_left(P,x)
    return abs(-T[p-1] + T[N-1]-T[p-1] + x*U[p-1] -x*(U[N-1]-U[p-1]))

ans = []
for e in X:
    ans.append(keisan(e))

print(*ans,sep="\n")