using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Increasing_elements
{
    class Program
    {
        static void Main(string[] args)
        {
            var size=int.Parse(Console.ReadLine());
            int [] n=new int [size+2];
            var br = 0;
            for (int i = 0; i <size; i++)
            {
                n[i] = int.Parse(Console.ReadLine());
                if(n[i]<n[i+1])
                { br++; }
                else { continue; }

            }
            Console.WriteLine(br);
        }
    }
}