from collections import defaultdict
N = int(input())
A = list(map(int,input().split()))
A = [a-1 for a in A]
dic = defaultdict(int)
for i,x in enumerate(A):
    dic[x] = i
B = sorted(A)
used = [0]*N
ans = 0
for i, x in enumerate(B):
    if used[x] == 1: continue
    ans += 1
    used[x] = 1
    shita = dic[x] - 1
    #print(A[shita])
    if shita >= 0 and used[A[shita]] == 0:
        used[A[shita]] = 1
print(ans)