#include <iostream>
#include <fstream>
using namespace std;
int n;
unsigned long long a[100000];
int numar(int i)
{
    int nr=0;
    int j;
    for(j=i+1;j<n;j++)
        if(a[j]>a[i])
        nr++;
        return nr;
}
int main()
{
    int max=0,x,i;
    ifstream f("scmax.in");
    ofstream g("scmax.out");
    f>>n;
    for(i=0;i<n;i++)
    f>>a[i];
    for(i=0;i<n-1;i++)
    {
        x=numar(i);
        if(x>max)
            max=x;
    }
    g<<max;
    f.close();
    g.close();
    return 0;
}