Harryxun/stf_run huggingface dataset:
from math import factorial

n, m = map(int, input().split())
A = [0] * m
for i in range(m):
    A[i] = int(input())
B = []
if m > 1:
    for i in range(m - 1):
        if A[i + 1] - A[i] == 1:
            print(0)
            exit()
if m:
    B.append(A[0])
    A.append(n + 1)
    for i in range(len(A) - 2, -1, -1):
        B.append(A[i + 1] - A[i] - 1)
else:
    B.append(n + 1)
div = 1_000_000_007
ans = 1
for b in B:
    if b < 3:
        continue
    c = b - 1
    two_max = c // 2
    a = 0
    for two in range(two_max + 1):
        one = c - (2 * two)
        a += factorial(one + two) // (factorial(one) * factorial(two))
    ans *= a
    ans %= div
print(ans)


### FIXED CODE ###

def generate_range_combinations(n):
    C = [1] * n
    for i in range(2, n):
        C[i] = (C[i - 1] + C[i - 2]) % DIV
    return C


def solve(n, m, A):
    from collections import defaultdict

    if m == 0:
        C = generate_range_combinations(n + 1)
        return C[-1]

    D = defaultdict(lambda: 0)
    for i in range(m - 1):
        d = A[i + 1] - A[i] - 1
        if d == 0:
            return 0
        D[d] += 1
    D[A[0]] += 1
    D[n - A[-1]] += 1

    ans = 1
    C = generate_range_combinations(max(D.keys()))
    for k, v in D.items():
        ans *= C[k - 1] ** v
        ans %= DIV
    return ans


DIV = 1000000007
n, m = map(int, input().split())
A = [int(input()) for _ in range(m)]
print(solve(n, m, A))
import sys

def echo(A):
    for i, a in enumerate(A):
        if i < len(A) - 1:
            sys.stdout('%d ' % a)
        else:
            sys.stdout('%d\n' % a)

def insertionSort(A, N):
    echo(A)
    for i in range(1, N):
        v = A[i]
        j = i - 1
        while j >= 0 and A[j] > v:
            A[j + 1] = A[j]
            j -= 1
        A[j + 1] = v
        echo(A)

if __name__ == '__main__':
    n = raw_input()
    a = raw_input()
    insertionSort(a, n)

### FIXED CODE ###

import sys, re

def echo(A):
    for i, a in enumerate(A):
        if i < len(A) - 1:
            sys.stdout.write('%d ' % a)
        else:
            sys.stdout.write('%d\n' % a)

def insertionSort(A, N):
    echo(A)
    for i in range(1, N):
        v = A[i]
        j = i - 1
        while j >= 0 and A[j] > v:
            A[j + 1] = A[j]
            j -= 1
        A[j + 1] = v
        echo(A)


n = int(raw_input())
a_text = raw_input()
splits = re.split(' ', a_text)
a = []
for i, s in enumerate(splits): 
    if s:
        a.append(int(s))

insertionSort(a, n)
s=input()
t=input()
S=list(s)
T=list(t)
S.sort()
T.sort()
T.reverse()
s=str(S)
t=str(T)
for char in S:
    print(char,end="")
print()
for char in T:
    print(char,end="")
print()

a=True

for i in range(10):
    if s[i]>t[i]:
        a=False


if a: print("Yes")


### FIXED CODE ###

s=input()
t=input()
S=list(s)
T=list(t)
S.sort()
T.sort()
T.reverse()
s=str(S)
t=str(T)

if S<T:print("Yes")
else :print("No")
N, M = map( int, input().split())
A = list( map( int, input().split()))
Needs = [0,2,5,5,4,5,6,3,7,6]
A.sort(reverse = True)
V = [0]*N
Check = []
for a in A:
    if V[Needs[a]] == 0:
        Check.append(Needs[a])
        V[Needs[a]] = a
Check.sort()
dp = [-100000]*(N+1)
dp[0] = 0

for x in Check:
    dp[x] = 1
for i in range(1,N):
    t = dp[i]
    if x + i <= N:
        if dp[x+i] < t + 1:
            dp[x+i] = t+1
ans = ""
t = N
W = [0]*10
while t > 0:
    for x in Check:
        if dp[t-x]+1 == dp[t]:
            W[V[x]] += 1
            t -= x
            break
for i in range(9,0,-1):
    ans += str(i)*W[i]
print(ans)

### FIXED CODE ###

N, M = map( int, input().split())
A = list( map( int, input().split()))
Needs = [0,2,5,5,4,5,6,3,7,6]
A.sort(reverse = True)
V = [0]*10
Check = []
for a in A:
    if V[Needs[a]] == 0:
        Check.append(Needs[a])
        V[Needs[a]] = a
Check.sort()
dp = [-100000]*(N+1)
dp[0] = 0

for x in Check:
    if x <= N:
        dp[x] = 1
for i in range(1,N):
    t = dp[i]
    for x in Check:
        if x + i <= N:
            if dp[x+i] < t + 1:
                dp[x+i] = t+1
ans = ""
t = N
W = [0]*10
while t > 0:
    for a in A:
        x = Needs[a]
        if t-x>=0:
            if dp[t-x]+1 == dp[t]:
                W[V[x]] += 1
                t -= x
                break
for i in range(9,0,-1):
    ans += str(i)*W[i]
print(ans)
Q = int(input())
for i in range(Q):
    a,b = (map(int, input().split()))
    if(a == b or a+1 == b):
        print(2*a -2)
    else:
        c = int(sqrt(a*b))
        if(c*(c+1) > a*b):
            print(2*c-2)
        else:
            print(2*c-1)


### FIXED CODE ###

Q = int(input())
for i in range(Q):
    a,b = (map(int, input().split()))
    if(a == b):
        print(2*a -2)
    elif(abs(a-b) == 1):
        print(2 * min(a,b) -2)
    else:
        c = int((a*b) ** 0.5)
        if c == (a*b) ** 0.5:
            c -= 1
        if(c*(c+1) >= a*b):
            print(2*c-2)
        else:
            print(2*c-1)
N, M = input().split()
X = list(map(int, input().split()))

if N >= M:
  print(0)
else:
  X.sort()
  L = []
  for i in range(M-1):
    L.append(X[i+1]-X[i])
  L.sort(reverse=True)
  print(X[M-1]-X[0]-sum(L[:N-1]))


### FIXED CODE ###

N, M = map(int, input().split())
X = list(map(int, input().split()))

if N >= M:
    print(0)
else:
    X.sort()
    L = []
    for i in range(M-1):
        L.append(X[i+1]-X[i])
    L.sort(reverse=True)
    print(X[M-1]-X[0]-sum(L[:N-1]))
N = int(input())
h = list(map(int, input().split()))


def recursive(i):
    if i == 0:
        return 0
    res = math.inf
    res = min(res, recursive(i - 1) + abs(h[i] - h[i - 1]))
    if i > 1:
        res = min(res, recursive(i - 2) + abs(h[i] - h[i - 2]))
    return res


print(recursive(N - 1))


### FIXED CODE ###

import math

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

dp = list([math.inf for i in range(N)])  # dpテーブル
dp[0] = 0
for i in range(N):
    a = dp[i]
    b = dp[i - 1] + abs(h[i] - h[i - 1])
    if a > b:
        dp[i] = b
    else:
        dp[i] = a
    a = dp[i]
    if i > 1:
        b2 = dp[i - 2] + abs(h[i] - h[i - 2])
        if a > b2:
            dp[i] = b2
        else:
            dp[i] = a

print(dp[N - 1])
N,M = map(int,input().split())
X = sorted(map(int,input().split()))
L = sorted([X[i+1]-X[i] for i in range(M-1)])
if M < L:print(0)
else:print(sum(L[:(M-N)]))

### FIXED CODE ###

N,M = map(int,input().split())
X = sorted(map(int,input().split()))
L = sorted([X[i+1]-X[i] for i in range(M-1)])
if M < N:print(0)
else:print(sum(L[:(M-N)]))
5 5
4 2 3 4 5
4 1 3 4 5
4 1 2 4 5
4 1 2 3 5
4 1 2 3 4

### FIXED CODE ###

def actual(N, M, K, A):
    # 各人のAの積集合の要素数が答え
    s = set(A[0])

    for a in A[1:]:
        s &= set(a)

    return len(s)


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

K = []
A = []

for _ in range(N):
    ka = list(map(int, input().split()))
    K.append(ka[0])
    A.append(ka[1:])

print(actual(N, M, K, A))
a = list(map(str,input().split()))
 
num = 0
 
for i in range [0,1,2,3]:
  if a[i] == "+":
    num +=1
  else:
    num -=1
 
print(num)    


### FIXED CODE ###

s = input()

print(s.count("+")-s.count("-"))
s = input()
t = input()
u = input()
print(u, s, t)

### FIXED CODE ###

a,b,c=map(int,input().split())
print(c, a, b)
a, v = map(int, input().split())
b, w = map(int, input().split())
t = input()
T = int(t)

d = b - a
d = int(d)
dv = v - w
d = abs(d)
if int(d) % int(dv) == 0 and  int(d) <= int(dv) * T:
    print('YES')
else:
    print('NO')

### FIXED CODE ###

a, v = map(int, input().split())
b, w = map(int, input().split())
t = input()
T = int(t)

d = b - a
d = int(d)
dv = v - w
dv = int(dv)
d = abs(d)
if dv > 0 and abs(d) <= abs(dv) * T:
    print('YES')
else:
    print('NO')
S = input()
list_atgc = ["A", "C", "G", "T"]
demand_list = []
for i in range(len(S)):
    if S[i] in list_atgc:
        for j in range(i, len(S)-i):
            if S[j] in list_atgc:
                demand_list.append(S[i:j+1])
print(len(max(demand_list, key=len)))

### FIXED CODE ###

S = input()
list_atgc = ["A", "C", "G", "T"]
demand_list = []
for i in range(len(S)):
    if S[i] in list_atgc:
        j = 0
        string_k = ""
        while True:
            if S[i+j] in list_atgc:
                string_k += S[i+j]
                demand_list.append(string_k)
                j += 1
                if i + j >= len(S):
                    break
            else:
                break
if demand_list:
    print(len(max(demand_list, key=len)))
else:
    print(0)
# coding: utf-8
import sys
input = sys.stdin.readline
sys.setrecursionlimit(10**6)

def f2(n):

    dp = [[0] * n for _ in range(n)]
    s = [1] * n

    def dfs(i, j):  # from i to j
        dpi = dp[i]
        if dpi[j]:
            return(dpi[j])
        dpij = 1
        for u in U[i]:
            if u != j:
                dpij = dpij * (dfs(u, i) + 1) % M
        s[j] = s[j] * (dpij + 1) % M
        dpi[j] = dpij
        return(dpij)

    for i in range(n):
        for u in U[i]:
            dfs(u, i)
    print("\n".join([str(x) for x in s]))

N, M = map(int, input().split()) # 1 <= N <= 10^5, 2 <= M <= 10^9
U = [set() for _ in range(N)]
for x, y in [map(int, input().split()) for _ in range(N - 1)]:
    U[x - 1].add(y - 1)
    U[y - 1].add(x - 1)
f2(N)


### FIXED CODE ###

# coding: utf-8

from itertools import accumulate as accum
import sys
input = sys.stdin.readline

def f(n, k, ai):
    mod = int(1e9 + 7)
    dp = [0] * (k + 1)
    dp[0] = 1
    for a in ai:
        # csum: Cumulative sum
        # dp[j] = dp[0] + dp[1] + ... + dp[j]
        # dp = list(accum(dp, lambda x, y: (x + y) % mod))
        dp = list(accum(dp))
        # j = 0 ～ a[i] までは累積和の結果そのままで a[i] + 1 以降は
        # dp[j] -= dp[j] - dp[j - a[i] - 1]
        dp[a + 1:] = [x - y for x, y in zip(dp[a + 1:], dp)]
        dp = [x % mod for x in dp]
    return(dp[k])

n, k = map(int, input().split()) # 1 <= n <= 100, 0 <= k <= 10^5
a = list(map(int, input().split()))
print(f(n, k, a))
NM = input()
N = int(NM.split(' ')[0])
M = int(NM.split(' ')[1])
each_days_map = {}
max_sort_list = [0]

def insert_max_sort(b):
    for idx in range(len(max_sort_list)):
        if b > max_sort_list[idx]:
            max_sort_list.insert(idx,b)
            if len(max_sort_list) > M:
                max_sort_list.pop()
            break

for i in range(N):
    ab = input()
    a = int(ab.split(' ')[0])
    b = int(ab.split(' ')[1])
    insert_flag = True
    if a > M or b < max_sort_list[len(max_sort_list)-1]:
        continue
    if a in each_days_map.keys():
        a_len = len(each_days_map[a])
        for idx in range(a_len):
            if b > each_days_map[a][idx]:
                each_days_map[a].insert(idx,b)
                if a_len > (M - a + 1):
                    removed_num = each_days_map[a][a_len-1]
                    each_days_map[a].pop()
                    max_sort_list.remove(removed_num)
                insert_max_sort(b)
                insert_flag = False
                break
        if insert_flag and M > a_len and (M - a + 1) > a_len:
            each_days_map[a].append(b)
            insert_max_sort(b)
    else:
        each_days_map[a] = [b]
        insert_max_sort(b)
print(sum(max_sort_list))

### FIXED CODE ###

import heapq
NM = input()
N = int(NM.split(' ')[0])
M = int(NM.split(' ')[1])
each_days_list = [[] for _ in range(M)]
 
for i in range(N):
    ab = input()
    a = int(ab.split(' ')[0])
    b = int(ab.split(' ')[1])
    if a <= M:
        each_days_list[a-1].append(b)

max_list = []
salary_count = 0
for i in range(M):
    for j in range(len(each_days_list[i])): 
        heapq.heappush(max_list,-each_days_list[i][j])
    if len(max_list) > 0:
        salary_count += -heapq.heappop(max_list)
        
print(salary_count)
from collections import Counter

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

sushis = [[0 for _ in range(2)] for _ in range(n)]
cnt_sushi_type = {}
for i in range(n):
  t,p = map(int, input().split())
  sushis[i][0] = -p #ポイント、大きいものから取り出したいのでマイナスにして入れる
  sushis[i][1] = t #種類

cnt_types = Counter() #寿司の種類覚えておく用のdict

sushis.sort(key=lambda x:x[0])

sushi_set = []
ans = 0
for p, t in sushis[:k]:
  #大きいものからk個選んで得点を計算
  ans += -p
  cnt_types[t] += 1
  sushi_set.append([p,t]) #集合を保存
  
ans += len(cnt_types) ** 2 #ネタ数＊ネタ数を加点

##ここまで貪欲選択

#x種類選んだ時の最大値
max_types = [0] * n
max_types[len(cnt_types)] = ans
for p, t in sushis[k:]: #これまで選んでないものを選択した場合についてみていく
  if t in cnt_types:
    continue #選んでない種類のネタを選びたいので、すでに選んでるネタであれば何もせず飛ばす
  else:
    #選んだ寿司集合にある一番得点の低い寿司を、現在見ている新ネタの寿司と入れ替える
    #実際に入れ替えるとめんどくさい（計算量的にappendとかしんどい）ので、ansとcnt_typesをいじることで調整する

    while sushi_set:
      ps, ts = sushi_set.pop() #小さい順で取り出す
      if cnt_types[ts] >= 2:
        #そのネタが2個以上あるなら一個減らして新セットを作る
        tmp =  max_types[len(cnt_types)] - (-ps) + (-p) + 2*len(cnt_types) + 1
        max_types[len(cnt_types)+1] = tmp
        cnt_types[t] += 1
        cnt_types[ts] -= 1
        break #次のまだ見ぬネタを探しに行く
        
#各種類選んだ最大値から最大のものを選択で終了
print(max(max_types))

### FIXED CODE ###

from collections import Counter

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

sushis = [[0 for _ in range(2)] for _ in range(n)]
cnt_sushi_type = {}
for i in range(n):
  t,p = map(int, input().split())
  sushis[i][0] = -p #ポイント、大きいものから取り出したいのでマイナスにして入れる
  sushis[i][1] = t #種類

cnt_types = Counter() #寿司の種類覚えておく用のdict

sushis.sort(key=lambda x:x[0])

sushi_set = []
ans = 0
for p, t in sushis[:k]:
  #大きいものからk個選んで得点を計算
  ans += -p
  cnt_types[t] += 1
  sushi_set.append([p,t]) #集合を保存
  
ans += len(cnt_types) ** 2 #ネタ数＊ネタ数を加点

##ここまで貪欲選択


max_types = []
max_types.append(ans)
#max_types[len(cnt_types)] = ans
for p, t in sushis[k:]: #これまで選んでないものを選択した場合についてみていく
  if t in cnt_types:
    continue #選んでない種類のネタを選びたいので、すでに選んでるネタであれば何もせず飛ばす
  else:
    #選んだ寿司集合にある一番得点の低い寿司を、現在見ている新ネタの寿司と入れ替える
    #実際に入れ替えるとめんどくさい（計算量的にappendとかしんどい）ので、ansとcnt_typesをいじることで調整する

    while sushi_set:
      ps, ts = sushi_set.pop() #小さい順で取り出す
      if cnt_types[ts] >= 2:
        #そのネタが2個以上あるなら一個減らして新セットを作る
        tmp =  max_types[-1]- (-ps) + (-p) + 2*len(cnt_types) + 1
        max_types.append(tmp)
        cnt_types[t] += 1
        cnt_types[ts] -= 1
        break #次のまだ見ぬネタを探しに行く
        
#各種類選んだ最大値から最大のものを選択で終了
print(max(max_types))
s=list(input())
out=[]
for i in range(len(s)):
  if s[i]=="1":
    out.append(s[i])
  elif s[i]=="0":
    out.append(s[i])
  elif len(out)!=0:
    del(s[-1])
for i in range(len(out)):
  print(out[i])

### FIXED CODE ###

s=list(input())
out=[]
for i in range(len(s)):
  if s[i]=="1":
    out.append(s[i])
  if s[i]=="0":
    out.append(s[i])
  if len(out)!=0 and s[i]=="B":
    del(out[-1])
print("".join(out))
x**3

### FIXED CODE ###

x = input()
print(x ** 3)
INPUT = list(int, input().split)
A = INPUT[0]
B = INPUT[1]
C = INPUT[2]

if (B//A) > C:
    ANS = C
else:
    ANS = B//A

print(ANS)

### FIXED CODE ###

A, B, C = (int(i) for i in input().split())  

if (B//A) > C:
    ANS = C
else:
    ANS = B//A

print(ANS)
class Bit:
    def __init__(self, n):
        self.size = n
        self.tree = [0] * (n + 1)

    # sum[0:i+1]
    def sum(self, i):
        s = 0
        while i > 0:
            s += self.tree[i]
            i -= i & -i
        return s

    # add x to i
    def add(self, i, x):
        while i <= self.size:
            self.tree[i] += x
            i += i & -i

N, K = map(int, input().split())
A = list(map(int, input().split()))
MOD = 10**9 + 7

def inv(X):
    B = Bit(len(X)+1)
    inv = 0
    for i in range(len(X)):
        inv += i - B.sum(X[i])
        B.add(X[i], 1)
    return inv

A_inv = inv(A) % MOD
A2_inv = inv(A*2) % MOD

print((K*A_inv + ((K*(K-1))//2) * (A2_inv - 2*A_inv)) % MOD)

### FIXED CODE ###

class Bit:
    def __init__(self, n):
        self.size = n
        self.tree = [0] * (n + 1)

    # sum[0:i+1]
    def sum(self, i):
        s = 0
        while i > 0:
            s += self.tree[i]
            i -= i & -i
        return s

    # add x to i
    def add(self, i, x):
        while i <= self.size:
            self.tree[i] += x
            i += i & -i

N, K = map(int, input().split())
A = list(map(int, input().split()))
MOD = 10**9 + 7

def inv(X):
    B = Bit(2000+1)
    inv = 0
    for i in range(len(X)):
        inv += i - B.sum(X[i])
        B.add(X[i], 1)
    return inv

A_inv = inv(A) % MOD
A2_inv = inv(A*2) % MOD

print((K*A_inv + ((K*(K-1))//2) * (A2_inv - 2*A_inv)) % MOD)
n=int(input())
a=input().split()
a=list(map(int,a))
i=0
ans=1
for calc in a:
    if(0 in a==True):
        print(0)
        exit()
    ans=ans*ch
    i+=1
    if(i==n):
        break
if(ans>1000000000000000000):
    print(-1)
else:
    print(ans)


### FIXED CODE ###

n=int(input())
a=input().split()
a=list(map(int,a))
ans=1
if(0 in a):
    print(0)
    exit()

for calc in a:
    ans*=calc
    if(ans>10**18):
        print(-1)
        exit()
if(ans>10**18):
    print(-1)
else:
    print(ans)
n, s = input().split(' ')
n = int(n)

r = s.count('R')
g = s.count('G')
b = s.count('B')

ans = r*g*b

for i in range(n):
  for j in range(i+1, n, 2):
    if s[i] != s[j] and s[i] != s[(i+j)/2] and s[(i+j)/2] != s[j]:
      count -= 1
print(count)

### FIXED CODE ###

n = int(input())
s = input()
 
r = s.count('R')
g = s.count('G')
b = s.count('B')
 
ans = r*g*b
 
for i in range(n):
  for j in range(i+2, n, 2):
    if s[i] != s[j] and s[i] != s[int((i+j)/2)] and s[int((i+j)/2)] != s[j]:
      ans -= 1
print(ans)
n=int(input())
a=[input for i in range(n)]
maxv=a[0]
minv=a[0]
for j in range(n):
    maxv=max(maxv,a[j])
    minv=min(minv,a[j])
print(maxv-minv)


### FIXED CODE ###

n=int(input())
a=[]
for i in range(n):
    a.append(int(input()))
maxv=a[1]-a[0]
minv=a[0]
for j in range(1,n):
    maxv=max(maxv,a[j]-minv)
    minv=min(minv,a[j])
print(maxv)
word=input()
list=set(word)
T=True
for i in list:
  if word.count(i)%2==1:
    T=False
if T=True:
  print("Yes")
else:
  print("No")

### FIXED CODE ###

alpha=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
word=input()
T=True
for i in alpha:
  if word.count(i)%2==1:
    T=False
    break
if T==True:
  print("Yes")
else:
  print("No")
def main():
  ## IMPORT MODULE
  #import sys

  #sys.setrecursionlimit(100000)
  #input=lambda :sys.stdin.readline().rstrip()

  #f_inf=float("inf")
  #MOD=10**9+7
  
  if 'get_ipython' in globals(): 
    ## SAMPLE INPUT
    n = 4
    S= ['((()))', '((((((', '))))))', '()()()']

  else:
    ##INPUT 
    n = input()
    #a, b = map(int, input().split())
    S = [input() for _ in range(n)]

  ## SUBMITION CODES HERE
  def CNT(A):
    tmp, Min = 0, 0
    for a in A:
        if a == '(': tmp += 1
        else: -1
        Min = min(Min, tmp)
    return (-Min, tmp-Min)
  
  T = [CNT(s) for s in S]

  pls = []
  mis = []
  for l, r in T:
    if l <= r: pls.append((l, r))
    else: mis.append((l, r))

  pls.sort(key=lambda a: a[0])
  mis.sort(key=lambda a: a[1], reverse=True)
  total = pls + mis

  levl = 0
  for l, r in total:
    levl -= l
    if levl < 0:
        print('No')
        exit()
    levl += r

  print('Yes' if levl == 0 else 'No')
    
main()

### FIXED CODE ###

def CNT(A):
    tmp, Min = 0, 0
    for a in A:
        if a == '(': tmp += 1
        else: tmp -= 1
        Min = min(Min, tmp)
    return (-Min, tmp-Min)

N = int(input())
S = [input() for _ in range(N)]
T = [CNT(s) for s in S]

pls = []
mis = []
for l, r in T:
    if l <= r: pls.append((l, r))
    else: mis.append((l, r))

pls.sort(key=lambda a: a[0])
mis.sort(key=lambda a: a[1], reverse=True)
totl= pls + mis

levl = 0
for l, r in totl:
    levl -= l
    if levl < 0:
        print('No')
        exit()
    levl += r

print('Yes' if levl==0 else 'No')
a,b = map(int,input().split())
if a=b:
  print(a*2)
else:
  print(1)

### FIXED CODE ###

a,b = map(int,input().split())
if a==b:
  print(a*2)
else:
  print(max([a,b])*2-1)
N, K = map(int, input().split())
X = list(map(int, input().split()))
town = []
dic = {}
i = 0
j = 0
while i not in dic and j < K:
    dic[i] = j
    town.append(i)
    i = X[i] - 1
    j += 1

if j == K:
    print(town[K] + 1)

else:
    num = dic[i]
    loop = j - num
    print(town[((K - num) % loop) + num] + 1)


### FIXED CODE ###

N, K = map(int, input().split())
X = list(map(int, input().split()))
town = []
dic = {}
i = 0
j = 0
while i not in dic and j < K:
    dic[i] = j
    town.append(i)
    i = X[i] - 1
    j += 1

if j == K:
    print(i + 1)

else:
    num = dic[i]
    loop = j - num
    print(town[((K - num) % loop) + num] + 1)
#include <stdio.h>
#include <math.h>

int main(void){
	int n;
	double x1,y1,x2,y2,x3,y3,a,b,c,s,ss,sina,r,px,py;
	scanf("%d",&n);
	while (n--){
		scanf("%lf %lf %lf %lf %lf %lf",&x1,&y1,&x2,&y2,&x3,&y3);
		a = sqrt(pow(x1-x2,2)+pow(y1-y2,2));
		b = sqrt(pow(x1-x3,2)+pow(y1-y3,2));
		c = sqrt(pow(x2-x3,2)+pow(y2-y3,2));
		s = (a+b+c)/2;
		ss = sqrt(s*(s-a)*(s-b)*(s-c));
		sina = 2*ss/b/c;
		r = a/sina/2;
		a = a*a; b = b*b; c = c*c;
		px = (a*(b+c-a)*x3 + b*(a+c-b)*x2+c*(a+b-c)*x1)/16/pow(ss,2);
		py = (a*(b+c-a)*y3 + b*(a+c-b)*y2+c*(a+b-c)*y1)/16/pow(ss,2);
		printf("%.3f %.3f %.3f",px, py, r);
	}
}

### FIXED CODE ###

import math
n = int(raw_input())
for i in range(n):
    x1, y1, x2, y2, x3, y3 = map(float, raw_input().split())
    a = math.sqrt((x1-x2)**2+(y1-y2)**2)
    b = math.sqrt((x1-x3)**2+(y1-y3)**2)
    c = math.sqrt((x2-x3)**2+(y2-y3)**2)
    s = (a+b+c)/2
    ss = math.sqrt(s*(s-a)*(s-b)*(s-c))
    sina = 2*ss/b/c
 
    r = a/sina/2

    a = a*a
    b = b*b
    c = c*c
    px = (a*(b+c-a)*x3 + b*(a+c-b)*x2+c*(a+b-c)*x1)/16/ss**2
    py =(a*(b+c-a)*y3 + b*(a+c-b)*y2+c*(a+b-c)*y1)/16/ss**2

    print "%.3f %.3f %.3f" % (px, py, r)
s = input()
k = int(input())
if (s[0] != '1'):
    print(s[0])
    exit(0)
first = s.find('1')
print(1) if k < first else print(s[first+1])


### FIXED CODE ###

s = input()
k = int(input())
first = len(s)
for i in range(len(s)):
  if s[i] != '1': first = i; break
if s[0] != '1': print(s[0]); exit(0)
print(1) if k <= first else print(s[first])
from copy import deepcopy
def deal(s):
    stin=[]
    for i in range(len(s)):
        if s[i]==".":
            stin.append(0)
        else:
            stin.append(1)
    return stin
def dp(start,goal,stin):
    if goal<start or stin[goal-1]==1:
     #   print(start,goal)
      #  print(stin[goal-1])
       # print(stin)
        return False
    if start==goal:
        return True
    return dp(start,goal-1,stin) or dp(start,goal-2,stin)

n,a,b,c,d=map(int,input().split())
s=deal(input())
#print(s)
root=[]
if c<d:
    if dp(b,d,s):
       # print("ceh")
        if dp(a,c,s):
            print("Yes")
        else:
            print("No")
    else:
        print("No")
elif d<c:
    for i in range(b-1,d):
        if s[i]==0:
            q=deepcopy(s)
            q[i]=1
            root.append(q)
    #    print(root)
   # print("DAME")
    if dp(b,d,s):
        for x in root:
            if dp(a,c,x):
                print("Yes")
                exit()
        print("No")  
    else:
        print("No")
else:
    print("No")



### FIXED CODE ###

n, a, b, c, d = map(int, input().split())
s = input()

if c < d:
    print("Yes" if s[a - 1:d].count("##") == 0 else "No")
    #aからd-1までで二個あるとあうと
else:
    print("Yes" if s[a - 1:c].count("##") ==
          0 and s[b - 2:d + 1].count("...") > 0 else "No")
          #b-1からd+1までで飛び越すの
for i in range(N):
    if S[i][-1:] == 'A' and S[i][0] == 'B':
        con.append(S[i])
    elif S[i][-1:] == 'A':
        Alis.append(S[i])
    elif S[i][0] == 'B':
        Blis.append(S[i])
if (len(Alis)+len(Blis)+len(con))==len(con):
    count += len(con)-1
else:
    count += min(len(con)+len(Alis),len(con)+len(Blis))
print(count)


### FIXED CODE ###

N = int(input())
S = [input() for i in range(N)]
count = 0
con = []
Alis = []
Blis = []
for s in S:
    count += s.count('AB')
for i in range(N):
    if S[i][-1:] == 'A' and S[i][0] == 'B':
        con.append(S[i])
    elif S[i][-1:] == 'A':
        Alis.append(S[i])
    elif S[i][0] == 'B':
        Blis.append(S[i])
if len(Alis)== 0 and len(Blis) == 0 and len(con) > 0:
    count += len(con)-1
else:
    count += min(len(con)+len(Alis),len(con)+len(Blis))
print(count)
N, K = list(map(int, input().strip().split()))
grid = []
k = 0
j = 0
for i in range(N):
	array = list(map(int, input().strip().split()))
	grid.append(array)
for i in range(N):
	if k < K:
		k += grid[i-1][1]
		j += 1
print(str(grid[j][0])[K-k])

### FIXED CODE ###

num = list(map(int, input().split()))
if num[2] >= num[0] and num[2] <= num[1]:
	print('Yes')
else:
	print('No')