# coding: utf-8
from collections import deque

N = int(input())
a = deque(list(map(int, input().split())))

ans = 0

do_bool = True
while do_bool:
    now_num = a[0]
    for i in range(1, N):
        if now_num <= a[i]:
            now_num = a[i]
        if now_num > a[i]:
            max_num = a[i]
            for j in range(i, N):
                if a[j] < now_num:
                    max_num = max(max_num, a[j])

            change_num = max_num
            a.remove(max_num)
            a.appendleft(change_num)
            ans += 1
            break
    else:
        do_bool = False

print(ans)