n=int(input())
a=list(map(int,input().split()))
b=list(map(int,input().split()))
c=[0]+[a[i]^b[i] for i in range(n)]+[0]
ans=0
for i in range(1,n+2):
  if c[i-1]!=c[i]:ans+=1
print(0--ans//2)