int main()
{   
	int n,i,j,s,sub=0,sum[1000]={0};
	int tfast,tslow,wfast,wslow;  
	int t[1000],w[1000];
	int k=0;
  while(scanf("%d",&n)&&(n!=0))
  {     
	  for(i=0;i<n;i++)
		  scanf("%d",&t[i]);
	  for(i=0;i<n;i++)
		  scanf("%d",&w[i]);
   	for(i=0;i<n-1;i++)
 		for(j=i+1;j<n;j++)
            if(t[i]<t[j])
			{s=t[j];t[j]=t[i];t[i]=s;}
 	for(i=0;i<n-1;i++)
 		for(j=i+1;j<n;j++)
            if(w[i]<w[j])
			{s=w[j];w[j]=w[i];w[i]=s;}
     tfast=0;tslow=n-1;
     wfast=0;wslow=n-1;    
    for(i=0;i<n;i++)       
	{
	    if(t[tfast]==w[wfast])    
		{
		   if(t[tslow]>w[wslow]){sub++;tslow--;wslow--;}
		   else if(t[tslow]<w[wslow]){sub--;tslow--;wfast++;}
           else if(t[tslow]==w[wslow])
		   {
			   if(t[tslow]<w[wfast]){sub--;tslow--;wfast++;}
               else if(t[tslow]==w[wfast]){break;}
		   }
		}
        else if(t[tfast]>w[wfast])
        		{sub++;tfast++;wfast++;}
		else {sub--;tslow--;wfast++;} 
	}
   sum[k++]=sub*200;
   sub=0;
  }
  for (i=0;i<k;i++) printf("%d\n",sum[i]);
  
} 