import bisect as bi
n,q=map(int,input().split())
nimotu=[list(map(int,input().split())) for i in range(n)]
nimotu.sort()
pos=[nimotu[i][0] for i in range(n)]
valuesum=[0]*n
weightsum=[0]*n
for i in range(n):
    valuesum[i]=valuesum[i-1]+nimotu[i][0]*nimotu[i][1]
    weightsum[i]=weightsum[i-1]+nimotu[i][1]
a=map(int,input().split())
for x in a:
    point=bi.bisect_left(pos,x)
    if point == n:
        print(x*weightsum[-1]-valuesum[-1])
        continue
    print(abs(x*weightsum[point-1]-valuesum[point-1]+valuesum[-1]-valuesum[point-1]-x*weightsum[-1]+x*weightsum[point-1]))