#include<bits/stdc++.h>
using namespace std;
long long n,a[1010],b[1010],ans;
int main(){
    freopen("proposal.in","r",stdin);
    freopen("proposal.out","w",stdout);
    cin>>n;
    for(long long i=1;i<=n;i++)
    cin>>a[i];
    for(long long i=1;i<=n;i++)
    cin>>b[i];
    b[n+1]=1000000007;
    for(long long i=1;i<=n;i++){
        if(a[i]>b[i]){
            long long res=1,j=i+1;
            while(a[i]>b[j]){
                j++;
                res++;
            }
            ans=max(ans,res);
        }
    }
    cout<<ans;
    return 0;
}