r,p,q=map(int,input().split())
l=list(map(int,input().split()))
x=0;y=sum(l)//3+1
while y-x>1:
 m=(x+y)//2
 if q*sum(max(0,m-t)for t in l[:3])+p*m>r:y=m
 else:x=m
print(x)