N,Q = map(int,input().split())
lsxw = []
v = 0
rw = 0
for i in range(N):
    x,w = map(int,input().split())
    lsxw.append((x,w))
    v += x*w
    rw += w
lsxw.sort(reverse=True)
ll = list(map(int,input().split()))
lsX = []
for i in range(Q):
    X = ll[i]
    lsX.append((X,i))
lsX.sort()
lsans = [0]*Q
lw = 0
#print(v,rw,lw)
now = 0
for i in range(Q):
    xx,ind = lsX[i]
    while lsxw and lsxw[-1][0] <= xx:
        x,w = lsxw.pop()
        v -= rw*(x-now)
        v += lw*(x-now)
        now = x
        rw -= w
        lw += w
    v -= rw*(xx-now)
    v += lw*(xx-now)
    now = xx
    lsans[ind] = v
print(*lsans,sep='\n')