N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
C = [(A[i] - B[i]) % 2 for i in range(N)]

res = 0

for i in range(N-1):
    res += (C[i] == 0 and  C[i+1] == 1)

if C[-1] == 1:
    res += 1

print(res)