import sys
input = sys.stdin.readline
N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
C = []
for i in range(2*N):
    a = A[i]
    b = B[i]
    C.append((a+b, i))
C.sort()
a = 0
b = 0
for i in range(2*N):
    _, j = C[i]
    if i%2==0:
        a += A[j]
    else:
        b += B[j]
print(a-b)