#include<bits/stdc++.h>
using namespace std;
const int SB=2e3+5;
int a[SB],b[SB],n,sum;
bool cmp(int a,int b){
	return a>b;
}
int main(){
	for(cin>>n;n!=0;cin>>n){
		for(int i=1;i<=n;i++){
			cin>>a[i];
		}
		for(int i=1;i<=n;i++){
			cin>>b[i];
		}
		sort(a+1,a+n+1,cmp);
		sort(b+1,b+n+1,cmp);
		int l1=1,l2=1,r1=n,r2=n;
		sum=0;
		while(l1<=r1){
			if(a[l1]>b[l2]){
				sum+=200;
				l1++;
				l2++;
			}else if(a[r1]>b[r2]){
				sum+=200;
				r1--;
				r2--;	
			}else{
				if(a[r1]<b[l2]){
					sum-=200;
				}
				r1--;
				l2++;
			}	
		}
		cout<<sum<<endl;
	}
	return 0;
}