import numpy as np


def main():
    n = int(input())
    a = list(map(int, input().split()))
    b = list(map(int, input().split()))

    arr = [0] + list(map(int, np.logical_xor(a, b)))
    ans = len([i for i in range(n) if arr[i:i + 2] == [0, 1]])
    print(ans)


if __name__ == "__main__":
    main()