42A - Guilty --- to the kitchen - CodeForces Solution

n,V=map(int,input().split(" "))
alist=[int(x) for x in input().split(" ")]
blist=[int(x) for x in input().split(" ")]
ans=0
minrate=100000
for i in range(n):
        rate=blist[i]/alist[i]     minrate=min(minrate,rate)
total=0
for i in range(n):
    total+=alist[i]*minrate
print(min(V,total))