x=[500, 1000, 1500, 2000, 2500]
m=list(map(int,raw_input().split()))
w=list(map(int,raw_input().split()))
hs,hu=map(int,raw_input().split())
ans=100*hs-50*hu
for i in range(5):
    ans+=max(0.3*x[i],x[i]-m[i]*x[i]/250-50*w[i])
print(int(ans))