#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("scmax.in");
ofstream fout("scmax.out");
int main()
{unsigned long long n,v[10002],lung[10002],i,lmax=1,j;
fin>>n;
for(i=1; i<=n; i++)
{
    fin>>v[i];
}
lung[1]=1;
lung[0]=0;
for(i=2; i<=n; i++)
{
    j=i-1;
    while(v[j]>=v[i]&&j)
    {
        j--;
    }
    lung[i]=lung[j]+1;
    if(lung[i]>lmax)
    {
        lmax=lung[i];
    }
}
cout<<lmax;

    return 0;
}