import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        try (Scanner scan = new Scanner(System.in)) {
            int n = scan.nextInt();
            int list[] = new int[n];
            for(int i=0; i<n; i++) {
                list[i] = scan.nextInt();
            }
            
            int max = list[0];
            int index = 0;
            for(int i=0; i<n; i++) {
                if(max < list[i]) {
                    max = list[i];
                    index = i;
                }
            }
            
            int target = max;
            int count = 0;
            for(int i=index; i>=0; i--) {
                if(list[i] == target) { 
                    count++;
                    target--;
                }
            }
            
            System.out.println(n-count);
        }
    }
}