#include<stdio.h>
long n,m;
long a[60000],b[60000];
FILE *fin;
void init ()
{
  long i;
  scanf ("%ld",&n);
  for (i=1;i<=n; i++)
    scanf ("%ld",&a[i]);
  scanf ("%ld",&m);
  for (i=1;i<=m; i++)  scanf ("%ld",&b[i]);
}
void work ()
{
  long f,i,first,last,x,y;
  f=1; i=1;
  while ((f)&&(i<=n))
    {
       first=1; last=m;
      while ((first<=last)&&(f))
    {
       x=(first+last)/2;
       if (b[x]+a[i]==10000) f=0;
       if (b[x]+a[i]<10000 ) last=x-1; else first=x+1;
    }
     i++;
    }
  if (f==0) printf ("%s\n","YES"); else printf ("%s\n","NO");
}
int main ()
{
   init ();
   work ();
   return 0;
}