N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

memo = []
for a, b in zip(A, B):
    memo.append(a^b)

from itertools import groupby
def runLengthEncode(S):
    grouped = groupby(S)
    res = []
    for k, v in grouped:
        res.append((k, int(len(list(v)))))
    return res

ans = 0
for k, v in runLengthEncode(memo):
    if k == 1:
        ans += 1
print(ans)