#include<bits/stdc++.h>
using namespace std;
/*
锟斤?教烫烫?锟斤拷烫烫烫 锟斤?教烫烫 ?锟斤拷烫烫烫 锟斤?教烫烫?锟斤拷烫烫烫
锟斤?教烫烫?锟?锟教烫烫?锟斤拷烫
锟斤拷烫烫烫 v锟斤拷烫?烫?锟斤拷烫烫烫 锟斤?烫 烫?锟斤?教烫烫?
锟斤?教 烫烫?锟斤拷烫烫烫 锟?锟教 烫烫??拷锟教烫烫 ??拷锟教烫烫?锟?锟教?烫烫
锟斤?教烫烫?锟斤拷烫烫烫 锟斤拷烫烫烫 锟斤拷烫?烫?
锟?锟教烫 烫?锟斤拷烫烫烫
锟?锟教 烫烫?
*/
int a[10010],dp[10010];
int n,ans;
int main() {
	cin>>n;
	for(int i=1; i<=n; i++) {
		cin>>a[i];
	}
	dp[1]=1;
	for(int i=2; i<=n; i++) {
		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<<dp[i];
	}
	cout<<ans;
	return 0;
}


/**************************************************************
	Problem: 1794
	User: chenyongtian
	Language: C++
	Result: Wrong Answer
****************************************************************/