N,Q=map(int,input().split())
xl=[]
wl=[]
for i in range(N):
    x,w=map(int,input().split())
    xl.append(x)
    wl.append(w)
ql=[int(i) for i in input().split()]
for i in ql:
    sum=0
    for n in range(N):
        sum+=abs(xl[n]-i)*w[n]
    print(sum)