import java.util.Scanner;
    public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] arr = new int[n];
        int count = 0;
        int Min =0, Middle, Max;
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }
        for (int i = 1; i <n-2 ; i++) {
            if (arr[i] < arr[i-1]) {
                for (int j = i+1; j < n-1; j++) {
                    if(arr[j]>arr[i]){
                        i=j;
                        count++;
                        break;
                    }
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
    }
```java