int main()
{
	int n,i,j,temp,r=0,thead,ttail,khead,ktail;
	int vtj[1100],vqw[1100];
	while(1)
	{
		r=0;
		scanf("%d",&n);
		if(n==0)
		break;
		for(i=0;i<n;i++)
			scanf("%d",&vtj[i]);
		for(i=0;i<n;i++)
			scanf("%d",&vqw[i]);
		for(i=0;i<n;i++)
			for(j=i;j<n;j++)
			{
				if(vqw[j]>vqw[i])
				{
					temp=vqw[i];
					vqw[i]=vqw[j];
					vqw[j]=temp;
				}
				if(vtj[j]>vtj[i])
				{
					temp=vtj[i];
					vtj[i]=vtj[j];
					vtj[j]=temp;
				}
			}
		ttail=ktail=n-1;
		thead=khead=0;
		while(ttail>=thead)
		{
			if(vtj[ttail]>vqw[ktail])
			{
				ttail--;
				ktail--;
				r+=200;
				continue;
			}
			else if(vtj[ttail]<vqw[ktail])
			{
				r-=200;
				ttail--;
				khead++;
				continue;
			}
			else
			{
				if(vtj[thead]>vqw[khead])
				{
					r+=200;
					thead++;
					khead++;
				}
				else if(vtj[thead]<vqw[khead])
				{
					r-=200;
					ttail--;
					khead++;
				}
				else
				{
					if(vtj[ttail]<vqw[khead])
					{
						r-=200;
						ttail--;
						khead++;
					}
					else
					{
						ttail--;
						khead++;
					}
				}
				continue;
			}
		}
	printf("%d\n",r);
	}
	getchar();
	getchar();
}
