import numpy as np


def solve(area):
    if area.shape[0] <= 1:
        return 0
    selected_ind = area*0
    max_ind = np.argmin(area)
    min_ind = max_ind
    for i in reversed(range(max_ind)):
        if area[min_ind] < area[i]:
            min_ind = i
            selected_ind[i] = 1
    min_ind = max_ind
    for i in range(max_ind+1, area.shape[0]):
        if area[min_ind] < area[i]:
            min_ind = i
            selected_ind[i] = 1
    count = np.sum(selected_ind)
    count += solve(area[0:max_ind])
    count += solve(area[max_ind+1:area.shape[0]])
    return count

N = int(input())
input_np = np.array(input().split()).astype(np.int32)

print(solve(input_np))