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

S = [(A[i]+B[i], A[i], B[i]) for i in range(N*2)]
S.sort(key=lambda x:x[0])
ans = 0
for i in range(N*2):
    if i%2 == 0:
        ans += S[i][1]
    else:
        ans -= S[i][2]

print(ans)