#include <bits/stdc++.h>
using namespace std;
const int N(5005);
int a[N]={INT_MIN},dp[N]={0,1},n,ans=INT_MIN;
int main()
{
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
		if(i==1)
			continue;
		int j=i-1;
		while(a[j]>=a[i])
			j--;
		dp[i]=dp[j]+1;
		ans=max(ans,dp[i]);
	}
	cout<<ans;
	return 0;
}