# input
n = int(input())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

# calculation
d = [a[i]+b[i] for i in range(2*n)]
d.sort()
ans = 0
ans = (sum(a[i]-b[i] for i in range(2*n)) + sum(d[i] * (+1 if i%2 == 0 else -1) for i in range(2*n))) // 2

# output
print(ans)