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

C = [(A[i], B[i], A[i] + B[i]) for i in range(2 * N)]
C.sort(key = lambda x: x[-1])

ans1 = 0
ans2 = 0
for i in range(2 * N):
  if i % 2 == 0:
    ans1 += C[i][0]
  else:
    ans2 += C[i][1] 

print(ans1 - ans2)