/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		int a[]=new int[n];
		for(int i=0;i<n;i++)
		a[i]=sc.nextInt();
 
		TreeMap<Integer,Integer> m=new TreeMap<>(Collections.reverseOrder());
		for(int ele:a)
		m.put(ele,m.getOrDefault(ele,0)+1);
		int ans=0;
		List<Map.Entry<Integer,Integer>> li=new ArrayList<>(m.entrySet());
 
		for(int i=0;i<li.size()-1;i++)
		{
			// ans+=hash.getValue();
		li.get(i+1).setValue( li.get(i+1).getValue()+li.get(i).getValue());
			ans+=li.get(i).getValue();
			li.get(i).setValue(0);
 
		}
 
		System.out.println(ans);
 
	}
}

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NQo0IDUgNSAyIDQ=

5
4 5 5 2 4