using System;
using System.Linq;
using System.Collections.Generic;

namespace yukicoder
{
	class PG
	{
		static void Main(string[] args)
		{
			int N = int.Parse(Console.ReadLine());
			var blocks = Console.ReadLine().Split(' ').Select(c => int.Parse(c)).ToList();
			
			var compBlocks = new List<int>(blocks);
			compBlocks = compBlocks.OrderBy(c => c).ToList();
			
			int ans = 0;
			int i = N - 1;
			while(i >= 0)
			{
				if(compBlocks[i] == blocks[i])
				{
					i--;
					continue;
				}
				int max = -1;
				int maxIndex = -1;
				
				for(int p = i ;p >= 0;p--)//入れ替え元探索
				{
					if(blocks[p] == compBlocks[i])
					{
						
						break;
					}else if(max < blocks[p])
					{
						max = blocks[p];
						maxIndex = p;
					}
				}
				
				for(int q = maxIndex;q > 0;q--)//入れ替え
				{
					blocks[q] = blocks[q - 1];
				}
				blocks[0] = max;
				
				ans++;
				
			}
			
			Console.WriteLine(ans);
			
			
		}
		
		
	}
}