#include<iostream>
#include<cmath>

using namespace std;

int a1[100000],a2[100000];
int main()
{
    int n1,n2;
    cin>>n1;
    for (int i=1; i<=n1; i++) cin>>a1[i];
    cin>>n2;
    for (int i=1; i<=n2; i++) cin>>a2[i];
    int i=1,j=1;
    bool bk=false;
    while (i<=n1 || j<=n2)
    {
        if (a1[i]+a2[j]==10000)
        {
            bk=true;
            break;
        }
        if (a1[i]+a2[j]<10000)
          if (i==n1) break; else i++;
        else
          if (j==n2) break; else j++;
    }
    if (bk==false) cout<<"NO"<<endl;
       else cout<<"YES"<<endl;
    return 0;
}