#include<bits/stdc++.h>
using namespace std;

int n,a[10001],dp[10001],ans;
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
		dp[i]=1;
		for(int j=i-1;j>=1;j++){
			if(a[j]<=a[i]) dp[i]=max(dp[i],dp[j+1]);
			ans=max(ans,dp[i]);
		}
		
	}
	cout<<ans;
	return 0;
}

/**************************************************************
	Problem: 1794
	User: zhengyuxuan
	Language: C++
	Result: Runtime Error
****************************************************************/