Harryxun/sft_time huggingface dataset:
### BUGGY CODE ###

# -*- coding: utf-8 -*-

import sys
import math


debug = False

def log(text):
    if debug:
        print(text)

def parse_input(lines_as_string = None):

    global debug
    lines = []
    if lines_as_string is None:
        debug = False
        # for line in sys.stdin:
        #     lines.append(line)
        lines.append(input())
        lines.append(input())
    else:
        debug = True
        lines = [e for e in lines_as_string.split("\n")][1:-1]


    n = int(lines[0])
    p = [int(e) for e in lines[1].split(' ')]

    return (n, p)


def solve(n, p):


    result = [] 
    current_min = 200000 + 1
    for i in range(n):

        if current_min < p[i]:
            continue 

        current_min = min([current_min, p[i]])

        done = False
        for j in range(i+1):
            if p[i] <= p[j]:
                if j == i:
                    done = True
            else:
                break
        if done:
            result.append(i)


    return len(result)


def main():
    # 出力
    result = solve(*parse_input())
    if isinstance(result, list):
        print("%d %d" % (result[0], result[1]))
    else:
        print("%s" % result, sep='')

if __name__ == '__main__':

    main()

### FIXED CODE ###

# -*- coding: utf-8 -*-

import sys
import math


debug = False

def log(text):
    if debug:
        print(text)

def parse_input(lines_as_string = None):

    global debug
    lines = []
    if lines_as_string is None:
        debug = False
        # for line in sys.stdin:
        #     lines.append(line)
        lines.append(input())
        lines.append(input())
    else:
        debug = True
        lines = [e for e in lines_as_string.split("\n")][1:-1]


    n = int(lines[0])
    p = [int(e) for e in lines[1].split(' ')]

    return (n, p)


def solve(n, p):


    result = [] 
    current_min = 200000 + 1
    current_min_index = None
    for i in range(n):

        if current_min < p[i]:
            pass
        else:
           current_min = p[i]
           current_min_index = i

        done = False
        for j in range(current_min_index, i+1):
            if p[i] <= p[j]:
                if j == i:
                    done = True
            else:
                break
        if done:
            result.append(i)


    return len(result)


def main():
    # 出力
    result = solve(*parse_input())
    if isinstance(result, list):
        print("%d %d" % (result[0], result[1]))
    else:
        print("%s" % result, sep='')

if __name__ == '__main__':

    main()
### BUGGY CODE ###

from heapq import heappush, heappop
class UnionFind:
  def __init__(self, n):
    self.par = [i for i in range(n)]
    self.rank = [0]*n
  def find(self, x):
    if self.par[x]==x:
      return x
    else:
      self.par[x] = self.find(self.par[x])
      return self.par[x]
  def unit(self, x, y):
    x = self.find(x)
    y = self.find(y)
    if x==y:
      return
    elif self.rank[x]<self.rank[y]:
      self.par[x] = y
      return
    elif self.rank[y]<self.rank[x]:
      self.par[y] = x
    else:
      self.par[y] = x
      self.rank[x] += 1 
  def same(self, x, y):
    return self.find(x)==self.find(y)
  
N = int(input())
X = []
Y = []
for i in range(N):
  x, y = map(int, input().split())
  X += [(x,y,i)]
  Y += [(x,y,i)]
X.sort()
Y.sort(key=lambda x:x[1])
hq = []
for i in range(N-1):
  x1, y1, i1 = X[i]
  x2, y2, i2 = X[i+1]
  heappush(hq, (x2-x1,i1,i2))
  x1, y1, i1 = Y[i]
  x2, y2, i2 = Y[i+1]
  heappush(hq, (y2-y1,i1,i2))

u  = UnionFind(N)
cnt = 1
ans = 0
while cnt<N:
  c, i1, i2 = heappop(hq)
  if u.same(i1,i2):
    continue
  ans += c
  cnt += 1
  u.unit(i1,i2)
print(ans)

### FIXED CODE ###

from heapq import heappush, heappop
class UnionFind:
  def __init__(self, n):
    self.par = [i for i in range(n)]
    self.size = [1]*n
    self.rank = [0]*n
  def find(self, x):
    if self.par[x]==x:
      return x
    else:
      self.par[x] = self.find(self.par[x])
      return self.par[x]
  def unit(self, x, y):
    x = self.find(x)
    y = self.find(y)
    if x==y:
      return
    elif self.rank[x]<self.rank[y]:
      self.par[x] = y
      self.size[y] += self.size[x]
      return
    elif self.rank[y]<self.rank[x]:
      self.par[y] = x
      self.size[x] += self.size[y]
    else:
      self.par[y] = x
      self.size[x] += self.size[y]
      self.rank[x] += 1 
  def same(self, x, y):
    return self.find(x)==self.find(y)
  
N = int(input())
X = []
Y = []
for i in range(N):
  x, y = map(int, input().split())
  X += [(x,y,i)]
  Y += [(x,y,i)]
X.sort()
Y.sort(key=lambda x:x[1])
hq = []
for i in range(N-1):
  x1, y1, i1 = X[i]
  x2, y2, i2 = X[i+1]
  heappush(hq, (x2-x1,i1,i2))
  x1, y1, i1 = Y[i]
  x2, y2, i2 = Y[i+1]
  heappush(hq, (y2-y1,i1,i2))

u  = UnionFind(N)
cnt = 1
ans = 0
while cnt<N:
  c, i1, i2 = heappop(hq)
  if u.same(i1,i2):
    continue
  ans += c
  cnt += 1
  u.unit(i1,i2)
print(ans)
### BUGGY CODE ###

# ABC161_C
from fractions import gcd
n,k=map(int,input().split())
if k==1:
    print(0)
    exit()


while n>abs(n-k):
    n=abs(n-k)
if n==k:
    n=0
print(n)
# ans=0
# ans=gcd(n,k)

# print(ans)
# ans=0
# # a=abs(n-k)
# ans=n%a
# print(ans)
# a=abs(n-k)
# # t=0
# while n>a:
#     n=n%a
# print(n)




### FIXED CODE ###

# ABC161_C
n,k=map(int,input().split())
t=n%k
print(min(t,k-t))
### BUGGY CODE ###

import sys
from operator import itemgetter

N, M = map(int,input().split())
work_list = [list(map(int, input().split())) for i in range(N)]

#sort by hosyu
work_list.sort(key=itemgetter(1), reverse=True)
sum = 0
workdays = [0] * (M+1)

for day, reward in work_list:
    latest = M - day
    while 0 <= latest:
        if workdays[latest] == 0:
            sum += reward
            workdays[latest] = 1
            break
        else:
            latest -= 1

print(sum)


### FIXED CODE ###

import sys
input = sys.stdin.readline
from heapq import heappop, heappush

N, M = map(int,input().split())
work_list = [[] for j in range(M+1)]
for i in range(N):
    temp = list(map(int,input().split()))
    if temp[0] > M:
        continue
    work_list[temp[0]].append(temp[1])

sum = 0
works = []

for i in work_list:
    for j in i:
        heappush(works, -1*j)
    if len(works) == 0:
        continue
    sum -= (heappop(works))

print(sum)
### BUGGY CODE ###

n,*a=map(int,open(0).read().split())
mod=10**9+7
b0=[0 for i in range(60)]
b1=[0 for i in range(60)]
for i in range(n):
  ai=a[i]
  for j in range(60):
    if ai&1==1:
      b1[j]+=1
    else:
      b0[j]+=1
    ai>>=1
ans=0
for i in range(60):
  ans+=(b0[i]*b1[i]*pow(2,i,mod))
  ans%=mod
print(ans)

### FIXED CODE ###

import numpy as np
n,*a=map(int,open(0).read().split())
mod=10**9+7
a=np.array(a)
ans=0
for i in range(60):
  c=len(a[a&1==1])
  a>>=1
  ans+=c*(n-c)*pow(2,i,mod)
  ans%=mod
print(ans)
### BUGGY CODE ###

N = int(input())
A = [int(input()) for _ in range(N)]
result = []
for i in range(N):
    C = A[i]
    A[i] = 0
    result.append(max(A))
    A[i] = C

for a in result:
    print(a)

### FIXED CODE ###

N = int(input())
A = [int(input()) for _ in range(N)]
B = max(A)
C = [B]*N
D = sorted(A)[-2]
i = A.index(B)
if A.count(B) == 1:
    C[i] = D

for a in C:
    print(a)
### BUGGY CODE ###

def main():
    N=int(input())
    ans = [None]*N
    
    print(0)
    s=input()
    if s=="Vacant":return
    ans[0] = s=="Male"
    l=1
    r=N-1
    while l+1<r:
        i = (l+r)//2
        print(i)
        s=input()
        if s=="Vacant":return
        ans[i] = s=="Male"
        if ans[i]==ans[0] and i%2==0:
            l = i
        else:
            r = i
    print(l)
    s=input()
    if s=="Vacant":return
    print(r)
    return

main()

### FIXED CODE ###

def main():
    N=int(input())
    ans = [None]*N
    
    print(0)
    s=input()
    if s=="Vacant":return
    ans[0] = s=="Male"
    l=1
    r=N-1
    while l+1<r:
        i = (l+r)//2
        print(i)
        s=input()
        if s=="Vacant":return
        ans[i] = s=="Male"
        if (ans[i]==ans[0]) ^ (i%2!=0):
            l = i
        else:
            r = i
    print(l)
    s=input()
    if s=="Vacant":return
    print(r)
    return

main()
### BUGGY CODE ###

N,W = map(int,input().split())

w = [-1 for i in range(N)]
v = [-1 for i in range(N)]

for i in range(N):
    w[i],v[i] = map(int,input().split())
    
dp = [[0 for i in range(W+1)] for j in range(N)]

#荷物を1つだけ入れた状態で、各許容重量の最大値を初期値として持たせる
for i in range(w[0],W+1):
    dp[0][i] = v[0]

for i in range(1,N):
    dp[i] = dp[i-1].copy()
    for j in range(w[i],W+1):
        dp[i][j] = max(dp[i-1][j],dp[i-1][j-w[i]]+v[i])

'''
for i in range(N):
    print(dp[i])
'''

print(dp[N-1][W])


### FIXED CODE ###

from itertools import accumulate

def chk(samp):
    for i in samp:
        print(samp)

N,W = map(int,input().split())

w = [0 for i in range(N)]
v = [0 for i in range(N)]

for i in range(N):
    w[i],v[i]=map(int,input().split())



#価値毎に置き換える
wl = [[] for i in range(4)]

#価値ごとのりすとに入れていく
for i in range(N):
    wl[w[i]-w[0]].append(v[i])


#ソートして最初に0を追加する。0は選択しない場合
for i in range(4):
    wl[i].sort(reverse = 1)
    wl[i].insert(0,0)
    

#累積和を作る
for i in range(4):
    wl[i] = list(accumulate(wl[i]))
    
#出力用変数
out = 0


for i,wl0 in enumerate(wl[0]):
   for j,wl1 in enumerate(wl[1]):
       for k,wl2 in enumerate(wl[2]):
           for l,wl3 in enumerate(wl[3]):
               if i*(w[0])+j*(w[0]+1)+k*(w[0]+2)+l*(w[0]+3) > W:
                   pass
               else:
                   out = max(out,wl0+wl1+wl2+wl3)
                   
print(out)
### BUGGY CODE ###

import fractions

A, B = map(int, input().split())

cd = []

for i in range(1, min(A, B) + 1):
    if A % i == 0 and B % i == 0:
        cd.append(i)

l = []

for i in range(0, len(cd)):
    c = cd[i]
    if not l:
        l.append(c)
    else:
        join = True
        for j in range(0, len(l)):
            k = l[j]
            if fractions.gcd(c, k) != 1:
                join = False
                break
        if join:
            l.append(c)

print(len(l))


### FIXED CODE ###

import fractions
import heapq
import itertools


def factorize(n):
    fct = []  # prime factor
    b, e = 2, 0  # base, exponent
    while b * b <= n:
        while n % b == 0:
            n = n // b
            e = e + 1
        if e > 0:
            fct.append((b, e))
        b, e = b + 1, 0
    if n > 1:
        fct.append((n, 1))
    return fct


A, B = map(int, input().split())

cd = []
max_cd = fractions.gcd(A, B)

if max_cd == 1:
    cd.append(1)
else:
    heapq.heappush(cd, 1)

    f = [k[0] for k in factorize(max_cd)]
    for v in f:
        heapq.heappush(cd, v)

l = []

for i in range(0, len(cd)):
    c = heapq.heappop(cd)
    if not l:
        l.append(c)
    else:
        join = True
        for j in range(0, len(l)):
            k = l[j]
            if fractions.gcd(c, k) != 1:
                join = False
                break
        if join:
            l.append(c)

print(len(l))
### BUGGY CODE ###

import sys
n,m=map(int,input().split())
l=[list(map(int,input().split())) for i in range(m)]
connection=[[] for i in range(n)]
for i in range(m):
  connection[l[i][0]-1].append((l[i][1]-1,l[i][2]))
  connection[l[i][1]-1].append((l[i][0]-1,-l[i][2]))

distance=[-999999999999]*n

def bfs(v):
  distance[v]=0
  next=[v]
  next2=set()
  visited=[-1]*n
  visitct=0
  while len(next)!=0 and visitct!=n:
    for i in range(len(next)):
      if visited[next[i]]==-1:
        visited[next[i]]=1
        visitct+=1
        for j in range(len(connection[next[i]])):
          if visited[connection[next[i]][j][0]]==-1:
            distance[connection[next[i]][j][0]]=distance[next[i]]+connection[next[i]][j][1]
            next2.add(connection[next[i]][j][0])
    next=list(next2)
    next2=set()

for i in range(n):
  if distance[i]==-999999999999:
    bfs(i)

for i in range(m):
  if distance[l[i][1]-1]-distance[l[i][0]-1]!=l[i][2]:
    print('No')
    sys.exit()
print('Yes')

### FIXED CODE ###

import sys
n,m=map(int,input().split())
l=[list(map(int,input().split())) for i in range(m)]
connection=[[] for i in range(n)]
for i in range(m):
  connection[l[i][0]-1].append((l[i][1]-1,l[i][2]))
  connection[l[i][1]-1].append((l[i][0]-1,-l[i][2]))

distance=[-999999999999]*n
visited=[-1]*n

def bfs(v):
  distance[v]=0
  next=[v]
  next2=set()
  visitct=0
  while len(next)!=0 and visitct!=n:
    for i in range(len(next)):
      if visited[next[i]]==-1:
        visited[next[i]]=1
        visitct+=1
        for j in range(len(connection[next[i]])):
          if visited[connection[next[i]][j][0]]==-1:
            distance[connection[next[i]][j][0]]=distance[next[i]]+connection[next[i]][j][1]
            next2.add(connection[next[i]][j][0])
    next=list(next2)
    next2=set()

for i in range(n):
  if distance[i]==-999999999999:
    bfs(i)

for i in range(m):
  if distance[l[i][1]-1]-distance[l[i][0]-1]!=l[i][2]:
    print('No')
    sys.exit()
print('Yes')
### BUGGY CODE ###

#最終日から見る，残り日数条件を満たす中で最大収入のものを選ぶ

import heapq

N,M=map(int,input().split())
AB=[[0,0] for _ in range(N)]

for i in range(N):
    AB[i][0],AB[i][1] = map(int,input().split())
AB.sort()

ans=0
q=[]
heapq.heapify(q)
ne=0
#dは残り日数
for d in range(1,M+1):
    for i in range(ne,N):
        if AB[i][0]<=d:
            heapq.heappush(q,AB[i][1]*-1)
            ne=i+1
    if len(q)!=0:
        a=heapq.heappop(q)
        ans-=a
    
print(ans)

### FIXED CODE ###

#最終日から見る，残り日数条件を満たす中で最大収入のものを選ぶ

import heapq

N,M=map(int,input().split())
AB=[[0,0] for _ in range(N)]

for i in range(N):
    AB[i][0],AB[i][1] = map(int,input().split())

AB.sort()

ans=0
q=[]
heapq.heapify(q)
ne=0
#dは残り日数
for d in range(1,M+1):
    for i in range(ne,N):
        if AB[i][0]<=d:
            heapq.heappush(q,AB[i][1]*-1)
            ne=i+1
        else:
            break
    if len(q)!=0:
        a=heapq.heappop(q)
        ans-=a
    
print(ans)
### BUGGY CODE ###

k = int(input())
s = input()
n = len(s)

def cmb1(n, r, mod):
    if ( r<0 or r>n ):
        return 0
    r = min(r, n-r)
    return g1[n] * g2[r] * g2[n-r] % mod

mod = 10**9+7 #出力の制限
N = 2*10**6+5
g1 = [1, 1] # 元テーブル
g2 = [1, 1] #逆元テーブル
inverse = [0, 1] #逆元テーブル計算用テーブル

for i in range( 2, N + 1 ):
    g1.append( ( g1[-1] * i ) % mod )
    inverse.append( ( -inverse[mod % i] * (mod//i) ) % mod )
    g2.append( (g2[-1] * inverse[-1]) % mod )

def power(a, n, mod):
    bi=str(format(n,"b")) #2進数
    res=1
    for i in range(len(bi)):
        res=(res*res) %mod
        if bi[i]=="1":
            res=(res*a) %mod
    return res

ans = 0
for i in range(k+1):
    ans += power(25, i, mod)*cmb1(i+n-1, n-1, mod)*power(26, k-i, mod)
print(ans%mod)


### FIXED CODE ###

def main():
    k = int(input())
    s = input()
    n = len(s)

    def cmb1(n, r, mod):
        if ( r<0 or r>n ):
            return 0
        r = min(r, n-r)
        return g1[n] * g2[r] * g2[n-r] % mod

    mod = 10**9+7
    N = 2*10**6
    fac = [1]*(N+1)
    finv = [1]*(N+1)
    for i in range(N):
        fac[i+1] = fac[i] * (i+1) % mod
    finv[-1] = pow(fac[-1], mod-2, mod)
    for i in reversed(range(N)):
        finv[i] = finv[i+1] * (i+1) % mod

    def cmb1(n, r, mod):
        if r <0 or r > n:
            return 0
        r = min(r, n-r)
        return fac[n] * finv[r] * finv[n-r] % mod

    def power(a, n, mod):
        bi=str(format(n,"b")) #2進数
        res=1
        for i in range(len(bi)):
            res=(res*res) %mod
            if bi[i]=="1":
                res=(res*a) %mod
        return res

    ans = 0
    for i in range(k+1):
        temp = power(25, i, mod)
        temp *= cmb1(i+n-1, n-1, mod)
        temp %= mod
        temp *= power(26, k-i, mod)
        temp %= mod
        ans += temp
    print(ans%mod)

if __name__ == '__main__':
    main()
### BUGGY CODE ###

import math
import fractions

K = int(input())
sum = 0

def gcd2(x,y,z):
    return math.gcd(math.gcd(x,y),z)

for i in range(1,K+1):
    for j in range(1,K+1):
        for k in range(1,K+1):
            sum += gcd2(i,j,k)

print(sum)





### FIXED CODE ###

import math
import fractions

K = int(input())
sum = 0

def gcd2(x,y,z):
    return math.gcd(math.gcd(x,y),z)

for i in range(1,K+1):
    for j in range(i,K+1):
        for k in range(j,K+1):
            if (i == j == k):
                sum += gcd2(i,j,k)
            elif i != j and j != k:
                sum += gcd2(i,j,k)*6
            else:
                sum += gcd2(i,j,k)*3



print(sum)
### BUGGY CODE ###

def find_root(components, n):
    if components[n][0] == n:
        return n
    else:
        root =  find_root(components, components[n][0])
        components[n] = [root]
        return root

N, M = [int(s) for s in input().split(' ')]
bridges = []
for i in range(M):
    bridges.append([int(s)-1 for s in input().split(' ')])
components = [[i] for i in range(N)]
inconvenience = []
totalNpair = N * (N-1) / 2
for i in range(M-1, -1, -1):
    convenience = 0
    for c in components:
        convenience += len(c) * (len(c)-1) / 2
    inconvenience.append(int(totalNpair - convenience))
    a, b = bridges[i]
    a_root = find_root(components, a)
    b_root = find_root(components, b)
    if a_root != b_root:
        components[a_root].extend(components[b_root])
        components[b_root] = [a_root]
for i in range(M-1, -1, -1):
    print(inconvenience[i])


### FIXED CODE ###

def find_root(components, n):
    if components[n] == n:
        return n
    elif components[components[n]] == components[n]:
        return components[n]
    else:
        components[n] = find_root(components, components[n])
        return components[n]

N, M = [int(s) for s in input().split(' ')]
bridges = []
for i in range(M):
    bridges.append([int(s)-1 for s in input().split(' ')])
components = [i for i in range(N)]
componentsLen = [1 for i in range(N)]
inconvenience = [int(N * (N-1) / 2)]
for i in range(M-1, -1, -1):
    a, b = bridges[i]
    a_root = find_root(components, a)
    b_root = find_root(components, b)
    if a_root != b_root:
        inconvenience.append(inconvenience[-1] - componentsLen[a_root] * componentsLen[b_root])
        if componentsLen[a_root] < componentsLen[b_root]:
            a_root, b_root = b_root, a_root
        componentsLen[a_root] += componentsLen[b_root]
        components[b_root] = a_root
    else:
        inconvenience.append(inconvenience[-1])
for i in range(M-1, -1, -1):
    print(inconvenience[i])
### BUGGY CODE ###

n = (int)(input())
l = (list)(map(int, input().split()))


def median(l):
    #l is odd
    l.sort()
    n = len(l)
    return l[n//2]


for i in range(n):
    tmp = l.copy()
    tmp.remove(tmp[i])
    print(median(tmp))


### FIXED CODE ###

n = (int)(input())
l = (list)(map(int, input().split()))

tmp = l.copy()
tmp.sort()

left = tmp[n//2-1]
right = tmp[n//2]

for item in l:
    if item <= left:
        print(right)
    else:
        print(left)
### BUGGY CODE ###

N, M = map(int, input().split())
AB = [tuple(map(int, input().split())) for _ in range(M)]

cnt = 0
while len(AB) > 0:
    bridges = [0] * (N - 1)
    for a, b in AB:
        for i in range(a - 1, b - 1):
            bridges[i] += 1
    collapse = bridges.index(max(bridges))
    cnt += 1
    AB = list(filter(lambda ab: ab[0] > collapse + 1 or collapse + 1 >= ab[1], AB))
print(cnt)

### FIXED CODE ###

N, M = map(int, input().split())
AB = [tuple(map(int, input().split())) for _ in range(M)]

AB.sort(key=lambda ab: ab[1])
removed = list()
for a, b in AB:
    if len(removed) == 0:
        removed.append(b - 1)
    elif a <= removed[-1] < b:
        continue
    else:
        removed.append(b - 1)
print(len(removed))
### BUGGY CODE ###

import sys
from collections import deque, Counter
int1 = lambda x: int(x) - 1
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(500000)


def warshall_floyd(dist):
    for k, _ in enumerate(dist):
        for i, _ in enumerate(dist):
            for j, _ in enumerate(dist):
                dist[i][j] = min(dist[i][j], dist[i][k] + dist[k][j])
    return dist


N, X, Y = map(int, read().split())
c = [[N + 10] * N for _ in range(N)]
for i in range(N - 1):
    c[i][i] = 0
    c[i][i + 1] = 1
    c[i + 1][i] = 1
c[N - 1][N - 1] = 0
c[X - 1][Y - 1] = 1
c[Y - 1][X - 1] = 1

cc = sum(warshall_floyd(c), [])

for i in range(1, N):
    print(cc.count(i) // 2)


### FIXED CODE ###

import sys
import numpy as np
from collections import deque, Counter
int1 = lambda x: int(x) - 1
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(500000)

N, X, Y = map(int, read().split())
dist = []
for i in range(1, N):
    node = np.arange(i + 1, N + 1)

    d = np.abs(node - i)
    dd = np.abs(i - X) + np.abs(Y - node) + 1
    ddd = np.abs(i - Y) + np.abs(X - node) + 1

    acc = np.minimum(np.minimum(d, dd), ddd)

    dist.append(acc)

dist = np.concatenate(dist)

cnt = np.bincount(dist, minlength=N)
for i in range(1, N):
    print(cnt[i])
### BUGGY CODE ###

N = int(input())
A = list(map(int, input().split()))

if not 1 in A:
    res = -1
else:
    res = 0
    for n in range(1, N+1):
        for i, a in enumerate(A):
            if a == n:
                break
            else:
                res += 1
        A = A[i+1:]
print(res)


### FIXED CODE ###

N = int(input())
A = list(map(int, input().split()))

if not 1 in A:
    res = -1
else:
    b = 1
    B = []
    for a in A:
        if a == b:
            B.append(b)
            b += 1
    res = N - len(B)

print(res)
### BUGGY CODE ###

import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

n, k = map(int, readline().split())
xy = [list(map(int, readline().split())) for _ in range(n)]
ans = float('inf')
for i, (ix, _) in enumerate(xy):
    for jx, _ in xy[i + 1:]:
        for j, (_, iy) in enumerate(xy):
            for _, jy in xy[j + 1:]:
                cnt = 0
                for x, y in xy:
                    if (ix <= x <= jx or jx <= x <= ix) and (iy <= y <= jy or jy <= y <= iy):
                        cnt += 1
                if cnt >= k:
                    ans = min(ans, abs(jx - ix) * abs(jy - iy))
print(ans)


### FIXED CODE ###

import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

n, k = map(int, readline().split())
xy = []
xx = []
yy = []
for _ in range(n):
    x, y = map(int, readline().split())
    xx.append(x)
    yy.append(y)
    xy.append((x, y))
xx.sort()
yy.sort()
ans = float('inf')
for i, ix in enumerate(xx):
    for jx in xx[i + 1:]:
        for j, iy in enumerate(yy):
            for jy in yy[j + 1:]:
                cnt = 0
                for x, y in xy:
                    if ix <= x <= jx and iy <= y <= jy:
                        cnt += 1
                if cnt >= k:
                    ans = min(ans, (jx - ix) * (jy - iy))
print(ans)
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))

ans=[]
for i in range(1, n+1):
  ans.append(str(a.index(i)+1))
  
print(" ".join(ans))


### FIXED CODE ###

n = int(input())
ans=[0] * (n + 1)

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

for i in range(1, n+1):
  chakujunn = a[i-1]
  ans[chakujunn] = i
  
print(" ".join(map(str,ans[1:])))
### BUGGY CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))

a = [i-1 for i in a]

p = 0
b = []
while p not in b:
    b.append(p)
    p = a[p]
loop_start = p
avant = b.index(p)
loop_count = len(b) - avant

if k <= avant:
    x = 0
else:
    k -= avant
    k %= loop_count
    x = loop_start

for _ in range(k):
    x = a[x]
print(x+1)

### FIXED CODE ###

n, k = map(int, input().split())
a = list(map(int, input().split()))

a = [i-1 for i in a]

d = [1]*n
p = 0
b = []
while d[p]:
    b.append(p)
    d[p] = 0
    p = a[p]
avant = b.index(p)
loop_count = len(b) - avant
c = b[avant:]

if k <= avant:
    print(b[k]+1)
else:
    k -= avant
    k %= loop_count
    print(c[k]+1)