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

def main():
    import heapq
    class unionfind():
        #size:要素数,tree：unionfind木
        def __init__(self,size):#self,要素数
            self.size=size
            self.tree=[[i,1] for i in range(self.size)]#root,depth
        
        #rootを探す
        def root(self,index):
            if self.tree[index][0]==index:
                return index
            else:
                self.tree[index][0]=self.root(self.tree[index][0])
                return self.tree[index][0]
    
        #結合
        def unite(self,index1,index2):
            r1=self.root(index1)
            r2=self.root(index2)
            if r1!=r2:
                d1,d2=self.tree[r1][1],self.tree[r2][1]
                if d1<=d2:
                    self.tree[r1][0]=r2
                    self.tree[r2][1]=max(d1+1,d2)
                else:
                    self.tree[r2][0]=r1
                    self.tree[r1][1]=max(d2+1,d1)
    
        #同じか判定
        def same(self,index1,index2):
            r1=self.root(index1)
            r2=self.root(index2)
            return r1==r2
    
    n=int(input())
    xy=[list(map(int,input().split())) for _ in [0]*n]
    xyz=[xy[i]+[i] for i in range(n)]
    x_sort=sorted(xyz,key=lambda x:x[0])
    y_sort=sorted(xyz,key=lambda x:x[1])
    g=[]
    heapq.heapify(g)
    for i in range(n-1):
        heapq.heappush(g,[abs(x_sort[i+1][0]-x_sort[i][0]),x_sort[i][2],x_sort[i+1][2]])
    for i in range(n-1):
        heapq.heappush(g,[abs(y_sort[i+1][1]-y_sort[i][1]),y_sort[i][2],y_sort[i+1][2]])
    u=unionfind(n)
    cnt=0
    while g:
        d,i,j=heapq.heappop(g)
        if u.same(i,j)==False:
            cnt+=d
            u.unite(i,j)
    print(cnt)
main()

### FIXED CODE ###

def main():
    import heapq
    def root(index):
        if tree[index][0]==index:
            return index
        else:
            tree[index][0]=root(tree[index][0])
            return tree[index][0]

    def unite(index1,index2):
        r1=root(index1)
        r2=root(index2)
        if r1!=r2:
            d1,d2=tree[r1][1],tree[r2][1]
            if d1<=d2:
                tree[r1][0]=r2
                tree[r2][1]=max(d1+1,d2)
            else:
                tree[r2][0]=r1
                tree[r1][1]=max(d2+1,d1)

    def same(index1,index2):
        return root(index1)==root(index2)
    
    n=int(input())
    xy=[list(map(int,input().split())) for _ in [0]*n]
    xyz=[xy[i]+[i] for i in range(n)]
    x_sort=sorted(xyz,key=lambda x:x[0])
    y_sort=sorted(xyz,key=lambda x:x[1])
    
    tree=[[i,1] for i in range(n)]#root,depth
    g=[]
    heapq.heapify(g)
    for i in range(n-1):
        heapq.heappush(g,[abs(x_sort[i+1][0]-x_sort[i][0]),x_sort[i][2],x_sort[i+1][2]])
    for i in range(n-1):
        heapq.heappush(g,[abs(y_sort[i+1][1]-y_sort[i][1]),y_sort[i][2],y_sort[i+1][2]])

    cnt=0
    while g:
        d,i,j=heapq.heappop(g)
        if same(i,j)==False:
            cnt+=d
            unite(i,j)
    print(cnt)
main()
### BUGGY CODE ###

h, n = map(int, input().split())
AB = [tuple(map(int, input().split())) for i in range(n)]
A = [a for a, b in AB]
B = [b for a, b in AB]
inf = 10**10
# DP[i][j]=i個以内で体力j以上削るための消費魔力の最小値
DP = [[inf for j in range(h+1)] for i in range(n+1)]
DP[0][0] = 0
for i in range(1, n+1):
    for j in range(h+1):
        DP[i][j] = min(DP[i-1][j], DP[i][max(0, j-A[i-1])]+B[i-1])
print(DP[n][h])


### FIXED CODE ###

inf = 10 ** 9


def main():
    H, N = map(int, input().split())
    AB = []
    for n in range(N):
        a, b = map(int, input().split())
        AB.append((a, b))
    AB.sort(reverse=True, key=lambda x: x[0])
    dp = [inf] * (H + 10 ** 4)
    dp[0] = 0
    for a, b in AB:
        for h in range(H):
            # if dp[h] == inf:
            #     continue
            # else:
            #     dp[h+a] = min(dp[h]+b, dp[h+a])
            if dp[h] != inf:
                tmp = dp[h] + b
                if tmp < dp[h + a]:
                    dp[h + a] = tmp
    print(min(dp[H:]))


main()
### BUGGY CODE ###

def solve():
    import numpy as np
    from sys import stdin
    f_i = stdin
    
    H, W = map(int, f_i.readline().split())
    A = tuple(tuple(map(int, f_i.readline().split())) for i in range(H))
    B = tuple(tuple(map(int, f_i.readline().split())) for i in range(H))
    
    max_bias = 80 * (W - 1) * (H - 1)
    dp1 = np.full((W, max_bias), False)
    dp1[0][0] = True
    for A_i, B_i in zip(A, B):
        dp2 = np.full((W, max_bias), False)
        diff = A_i[0] - B_i[0]
        for pre_bias in np.where(dp1[0] == True):
            dp2[0][abs(pre_bias + diff)] = True
            dp2[0][abs(pre_bias - diff)] = True
        
        for j, t in enumerate(zip(A_i[1:], B_i[1:]), start=1):
            A_ij, B_ij = t
            diff = A_ij - B_ij
            for pre_bias in np.where(dp1[j] == True):
                dp2[j][abs(pre_bias + diff)] = True
                dp2[j][abs(pre_bias - diff)] = True
            for pre_bias in np.where(dp2[j-1] == True):
                dp2[j][abs(pre_bias + diff)] = True
                dp2[j][abs(pre_bias - diff)] = True
        dp1 = dp2
    
    print(np.where(dp2[-1] == True)[0][0])#
 
solve()

### FIXED CODE ###

def solve():
    from sys import stdin
    f_i = stdin
    
    H, W = map(int, f_i.readline().split())
    A = tuple(tuple(map(int, f_i.readline().split())) for i in range(H))
    B = tuple(tuple(map(int, f_i.readline().split())) for i in range(H))
    
    dp1 = [0] * W
    bit_width = 80 * (H + W - 2)
    dp1[0] = 1 << (bit_width)
    for A_i, B_i in zip(A, B):
        dp2 = [0] * W
        
        diff = abs(A_i[0] - B_i[0])
        dp2[0] = (dp1[0] << diff) | (dp1[0] >> diff)
        
        for j, t in enumerate(zip(A_i[1:], B_i[1:]), start=1):
            A_ij, B_ij = t
            diff = abs(A_ij - B_ij)
            b = dp1[j] | dp2[j-1]
            dp2[j] = (b << diff) | (b >> diff)
        
        dp1 = dp2
    
    b = bin(dp2[-1])
    b = b[-bit_width-1:]
    print(b.index('1'))
 
solve()
### BUGGY CODE ###

def main():
    k, s = map(int, input().split())
    ans = 0
    for x in range(max(0, s-2*k), k + 1):
        for y in range(max(0, s-2*k), k + 1):
            for z in range(k + 1):
                if x + y + z == s:
                    ans += 1
                    break
    print(ans)


if __name__ == '__main__':
    main()


### FIXED CODE ###

def main():
    k, s = map(int, input().split())
    ans = 0
    for x in range(k + 1):
        for y in range(k + 1):
            z = s - x - y
            if z >= 0 and z <= k:
                ans += 1
    print(ans)


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

# import sys
# input = sys.stdin.readline

def mp(): return map(int, input().split())
def lmp(): return list(map(int, input().split()))


n = int(input())
cnt = 0
for c in range(1, n):
    tar = n-c
    for a in range(1, int(tar**0.5)+1):
        if tar % a == 0:
            b = tar // a
            if b > 0 and a != b:
                cnt += 2
            elif b > 0:
                cnt += 1

print(cnt)




### FIXED CODE ###

# import sys
# input = sys.stdin.readline

def mp(): return map(int, input().split())
def lmp(): return list(map(int, input().split()))


n = int(input())
cnt = 0
for a in range(1, n):
    u = (n-1) // a
    cnt += u
print(cnt)

# for c in range(1, n):
#     tar = n-c
#     for a in range(1, int(tar**0.5)+1):
#         if tar % a == 0:
#             b = tar // a
#             if b > 0 and a != b:
#                 cnt += 2
#             elif b > 0:
#                 cnt += 1
#
# print(cnt)
### BUGGY CODE ###

N=int(input())
A=[int(input()) for i in range(N)]
for i in range(N):
	B = A.copy()
	B.pop(i)
	print(max(B))

### FIXED CODE ###

N=int(input())
A=[int(input()) for i in range(N)]
#print(A)
B = A.copy()
#print(B)
B.sort()


for i in range(N):
	k = A[i]
	#print(k)
	if k != B[N-1]:
		print(B[N-1])
	else:
		print(B[N-2])
### BUGGY CODE ###

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

if a[0] % 2 == 1 or a[1] % 2 == 1 or a[2] % 2 == 1:
    print(0)
    exit()
elif a[0] == a[1] == a[2]:
    print(-1)

cnt = 0
while True:
    a[0], a[1], a[2] = a[1]//2+a[2]//2, a[0]//2+a[2]//2, a[0]//2+a[1]//2
    cnt += 1
    for i in a:
        if i % 2 == 1:
            print(cnt)
            exit()

### FIXED CODE ###

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

if a[0] % 2 == 1 or a[1] % 2 == 1 or a[2] % 2 == 1:
    print(0)
    exit()

cnt = 0
for _ in range(1000):
    for i in a:
        if i % 2 == 1:
            print(cnt)
            exit()
    a[0], a[1], a[2] = a[1] // 2 + a[2] // 2, a[0] // 2 + a[2] // 2, a[0] // 2 + a[1] // 2
    cnt += 1
else:
    print(-1)
### BUGGY CODE ###

S = input()

max_S = 10**9 + 7

N_Q = 0
N_C = 0
for c in S:
    if(c == "?"):
        N_Q += 1
    elif(c == "C"):
        N_C += 1

AQ_0 = int(3**N_Q)
AQ_1 = AQ_0 // 3
AQ_2 = AQ_1 // 3

BQ_0 = AQ_0 // 3
BQ_1 = AQ_1 // 3
BQ_2 = AQ_2 // 3


t_A = 0
t_Q = 0
if(S[0:1] == "C"):
    t_C = N_C - 1
else:
    t_C = N_C

ans = 0
for i in range(1, len(S)):
    if(S[i - 1:i] == "A"):
        t_A += 1
    elif(S[i - 1:i] == "?"):
        t_Q += 1

    bA = t_A
    bQ = t_Q
    if(S[i:i + 1] == "?"):
        aQ = N_Q - t_Q - 1
    else:
        aQ = N_Q - t_Q
    if(S[i:i + 1] == "C"):
        t_C -= 1
    aC = t_C

    if(S[i:i + 1] == "A" or S[i:i + 1] == "C"):
        continue
    elif(S[i:i + 1] == "?"):
        Q_0 = BQ_0
        Q_1 = BQ_1
        Q_2 = BQ_2
    else:
        Q_0 = AQ_0
        Q_1 = AQ_1
        Q_2 = AQ_2

    ans += Q_0 * bA * aC + bQ * aQ * Q_2 + Q_1 * (bA * aQ + bQ * aC)

ans = ans % max_S

print(ans)

### FIXED CODE ###

S = input()

d = [0, 0, 0, 1]

max_ans = 10**9 + 7

for c in reversed(S):
    # print(c, d)
    m = [c == "A", c == "B", c == "C", c == "?"]
    if(m[3] is True):
        tmp = 3
    else:
        tmp = 1

    for j in range(3):
        d[j] = (tmp * d[j] + int(m[j] or m[3]) * d[j + 1]) % max_ans
    d[3] = (tmp * d[3]) % max_ans

print(d[0])
### BUGGY CODE ###

N = int(input())
X = 0
for i in range(356, N+1):
	A = str(i)
	if A.count('3') > 0 and A.count('5') > 0 and A.count('7') > 0 and A.count('1')== 0 and A.count('2')== 0 and A.count('4')== 0 and A.count('6')== 0 and A.count('8')== 0 and A.count('9')== 0 and A.count('0')== 0:
		X = X+1
print(X)

### FIXED CODE ###

n = int(input())


def dfs(s):
    if int(s) > n:
        return 0
    ret = 1 if all(s.count(c) > 0 for c in '753') else 0
    for c in '753':
        ret += dfs(s + c)
    return ret


print(dfs('0'))
### BUGGY CODE ###

n = int(input())
s = list(input())

ans = []

for i in range(len(s)-2): #1桁目
    for j in range(i+1 , len(s)-1): #2桁目
        for k in range(j+1 , len(s)): #3桁目
            ans.append(s[i]+s[j]+s[k])

print(len(set(ans)))

### FIXED CODE ###

n = int(input())
s = input()

ans = 0

for i in range(1000):
    t = str(i).zfill(3)
    t_index = 0
    for s_index in range(n):
        if s[s_index] == t[t_index]:
            t_index += 1
            if t_index == 3:
                break
    if t_index == 3:
        ans += 1

print(ans)
### BUGGY CODE ###

N = int(input())
A = list(map(int,input().split()))
import numpy as np
num_list = np.zeros(N+1)
for A_ in A:
    num_list[A_] += 1

for A_ in A:
    num_list[A_] -= 1
    ans_ = 0
    for index_ in num_list:
        ans_ += index_ * (index_ - 1) / 2
    print(int(ans_))
    num_list[A_] += 1

### FIXED CODE ###

N = int(input())
A = list(map(int,input().split()))
import numpy as np
num_list = np.zeros(N+1)
for A_ in A:
    num_list[A_] += 1

all_pattern = 0
for number_ in num_list:
    all_pattern += number_ * (number_ - 1) / 2

for A_ in A:
    print(int(all_pattern - (num_list[A_] - 1)))
### BUGGY CODE ###

A,B,K=map(int,input().split())
for x in range(K):
    if A>=1:
        A-=1
    else:
        B-=1
print(A,B)

### FIXED CODE ###

A,B,K=map(int,input().split())
if A+B>=K:
    if A>=K:
        A=A-K
    else:
        B=B-(K-A)
        A=0
else:
    A=0
    B=0

print(A,B)
### BUGGY CODE ###

#!/usr/bin/python3
n, m = map(int, input().split())
ALL = [0] * n
Graph = []
for i in range(m):
    s, t = map(int, input().split())
    if ALL[s] == 0 and ALL[t] == 0:
        Graph.append(set([s, t]))
    elif ALL[s] == 0:
        for g in Graph:
            if t in g:
                g.add(s)
                break
    elif ALL[t] == 0:
        for g in Graph:
            if s in g:
                g.add(t)
                break
    else:
        sg = None
        tg = None
        for g in Graph:
            if s in g:
                sg = g
            if t in g:
                tg = g

        if sg is not tg:
            sg.update(tg)
            Graph.remove(tg)

    ALL[s] = 1
    ALL[t] = 1
q = int(input())
for i in range(q):
    s, t = map(int, input().split())
    for g in Graph:
        if s in g and t in g:
            print('yes')
            break
    else:
        print('no')

### FIXED CODE ###

#!/usr/bin/python3

def set_color(i, ci, e, color):
    color[i] = ci
    next_i = set(e[i])
    while len(next_i):
        s = next_i.pop()
        if color[s] != ci:
            color[s] = ci
            next_i.update(e[s])


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

e = [set() for i in range(n)]
color = [None] * n

for i in range(m):
    s, t = map(int, input().split())
    e[s].add(t)
    e[t].add(s)

ci = 0
for i in range(n):
    if color[i] == None:
        set_color(i, ci, e, color)
        ci += 1

q = int(input())
for i in range(q):
    s, t = map(int, input().split())
    if color[s] == color[t]:
        print('yes')
    else:
        print('no')
### BUGGY CODE ###

import collections
N = int(input())
cnt = 0
A = []
for i in range(N):
    s = sorted(input())
    s = str(s)
    cnt += collections.Counter(A)[s]
    A.append(s)
print(cnt)

### FIXED CODE ###

import collections
N = int(input())
A = []
for i in range(N):
    s = sorted(input())
    A.append(str(s))
B = collections.Counter(A)
print(sum(i*(i-1)//2 for i in B.values()))
### BUGGY CODE ###

from bisect import bisect_right as bisect
N, K = map(int, input().split())
A = list(map(int, input().split()))
m = max(A)
a_to_i = [[] for _ in range(m+1)]
for i in range(N):
    a_to_i[A[i]].append(i)
now = 0
next_k_i = [[None]*N for _ in range(30)]
for now in range(N):
    h = 0
    i = bisect(a_to_i[A[now]], now)
    if i == len(a_to_i[A[now]]):
        i = 0
        h+=N
    i = a_to_i[A[now]][i]
    h+=(i-now+1)
    next_k_i[1][now] = ((i+1)%N, h)
for i in range(2, 30):
    for j in range(N):
        a, b = next_k_i[i-1][j]
        c, d = next_k_i[i-1][a]
        next_k_i[i][j] = (c, b+d)
now = 0
cnt = K*N
while cnt:
    flag = False
    for i in range(1, 30)[::-1]:
        a, b = next_k_i[i][now]
        if cnt>=b:
            cnt-=b
            now = a
            flag = True
            break
    if not flag:
        break
ans = []
while now<N:
    a = next_k_i[1][now][0]
    if next_k_i[1][now][0] == 0:
        a+=N
    if a>now+1:
        now = a
        continue
    ans.append(A[now])
    now+=1
print(*ans)
    





    


### FIXED CODE ###

from bisect import bisect_right
import sys
N, K = map(int, input().split())
A = list(map(int, input().split()))
a_to_i = [[] for _ in range(max(A)+1)]
for i in range(N):
    a_to_i[A[i]].append(i)
next_index = [-1]*N
for i in range(N):
    a = A[i]
    j = bisect_right(a_to_i[a], i)
    if j == len(a_to_i[a]):
        next_index[i] = a_to_i[a][0]+N
    else: next_index[i] = a_to_i[a][j]
now = 0
cnt = 0
while True:
    i = next_index[now]
    if i>=N:
        i%=N
        cnt+=1
    else: now = i
    i+=1
    if i>=N:
        cnt+=1
        i%=N
    now = i
    if now == 0:
        break
K%=cnt
if K==0:
    print()
    sys.exit()
ans = [A[0]]
K*=N
K-=1
now = 0
while now<K:
    ni = next_index[now%N]+1
    if(now//N)*N+ni-1 == K:
        ans.pop()
        break
    if (now//N)*N+ni>K:
        now+=1
        ans.append(A[now%N])
    else:
        now = (now//N)*N+ni
        ans[-1] = A[now%N]




print(*ans, sep = ' ')
### BUGGY CODE ###

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

S = [input() for _ in range(H)]

a = [[0] * W for _ in range(H)] # 右
b = [[0] * W for _ in range(H)] # 左
c = [[0] * W for _ in range(H)] # 上
d = [[0] * W for _ in range(H)] # 下

for x in range(H):
    for y in range(W):
        if S[x][y] == '#':
            a[x][y] = -1
        elif y > 0:
            a[x][y] = a[x][y-1] + 1
            
for x in range(H):
    for y in range(W-1,-1,-1):
        if S[x][y] == '#':
            b[x][y] = -1
        elif y < W-1:
            b[x][y] = b[x][y+1] + 1

for y in range(W):
    for x in range(H):
        if S[x][y] == '#':
            c[x][y] = -1
        elif x > 0:
            c[x][y] = c[x-1][y] + 1

for y in range(W):
    for x in range(H-1,-1,-1):
        if S[x][y] == '#':
            d[x][y] = -1
        elif x < H-1:
            d[x][y] = d[x+1][y] + 1

ans = 0

for x in range(H):
    for y in range(W):
        if S[x][y] != '#':
            ans = max(ans,a[x][y]+b[x][y]+c[x][y]+d[x][y]+1)

print(ans)

### FIXED CODE ###

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

S = [input() for _ in range(H)]

a = [[0] * W for _ in range(H)] # 右
b = [[0] * W for _ in range(H)] # 左
c = [[0] * H for _ in range(W)] # 上
d = [[0] * H for _ in range(W)] # 下

for x in range(H):
    for y in range(W):
        if S[x][y] == '#':
            a[x][y] = -1
        elif y > 0:
            a[x][y] = a[x][y-1] + 1
            
for x in range(H):
    for y in range(W-1,-1,-1):
        if S[x][y] == '#':
            b[x][y] = -1
        elif y < W-1:
            b[x][y] = b[x][y+1] + 1

for y in range(W):
    for x in range(H):
        if S[x][y] == '#':
            c[y][x] = -1
        elif x > 0:
            c[y][x] = c[y][x-1] + 1

for y in range(W):
    for x in range(H-1,-1,-1):
        if S[x][y] == '#':
            d[y][x] = -1
        elif x < H-1:
            d[y][x] = d[y][x+1] + 1

ans = 0

for x in range(H):
    for y in range(W):
        if S[x][y] != '#':
            ans = max(ans,a[x][y]+b[x][y]+c[y][x]+d[y][x]+1)

print(ans)
### BUGGY CODE ###

import itertools
import math
n = int(input())

lst = [_ for _ in range(1, n+1)]
lst2 = list(itertools.permutations(lst, 3))
lst3 = list(itertools.permutations(lst, 2)) * 3
l2 = sum([math.gcd(math.gcd(_[0],_[1]),_[2]) for _ in lst2])
l3 = sum([math.gcd(_[0], _[1]) for _ in lst3])
l4 = sum(lst)

ans = l2 + l3 + l4

print(ans)

### FIXED CODE ###

import itertools
import math
n = int(input())

lst = [_ for _ in range(1, n+1)]
lst2 = list(itertools.product(lst, repeat=2))

lst3 = [math.gcd(_[0], _[1]) for _ in lst2]

lst4 = list(itertools.product(lst3, lst))

lst5 = [math.gcd(_[0], _[1]) for _ in lst4]

print(sum(lst5))
### BUGGY CODE ###

import sys
import heapq
from collections import defaultdict
n, m = map(int, sys.stdin.readline().split())
a_b = [list(map(int, sys.stdin.readline().split())) for _ in range(n)]
dic = defaultdict(list)
for ele in a_b:
    dic[ele[0]].append(ele[1])

#print(dic)
L =[]
money = 0
for d in range(1, m+1):
    dic[d] = map(lambda x:-x, dic[d])
    L+=dic[d]
    heapq.heapify(L)
    if L:
        money +=heapq.heappop(L)
print(-money)

### FIXED CODE ###

import sys
from collections import defaultdict
import heapq
input = sys.stdin.readline
n, limit = map(int, input().split())
dic = defaultdict(list)

for _ in range(n):
    a, b = map(int, input().split())
    dic[a].append(b)

L = []
ans = 0
for i in range(limit+1):
    for val in dic[i]:
        heapq.heappush(L, -val)
    if len(L):
        ans -= heapq.heappop(L)
print(ans)
### BUGGY CODE ###

n = int(input())
a = list(map(int, input().split()))
mod = 10**9+7
ans = 0

for i in range(n):
    for j in range(i+1, n):
       ans += (a[i]*a[j])%mod
       ans %= mod
print(ans)


### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
mod = 10**9+7
a0 = sum(a[1:])
ans = 0

for i in range(n-1):
    ans += (a0*a[i])%mod
    ans %= mod
    a0 -= a[i+1]
print(ans)
### BUGGY CODE ###

# D - Knapsack Queries on a tree

n = int(input())

v = [0] * n
w = [0] * n
for i in range(n):
    v[i], w[i] = map(int, input().split())

# memoization cache for each vertex
cache = [{} for _ in range(n)]

def solve(u, l):
    if l in cache[u]:
        return cache[u][l]
    parent = (u - 1) // 2
    s = solve(parent, l) if u > 0 else 0
    if l >= w[u]:
        s = max(s, v[u] + (solve(parent, l - w[u]) if u > 0 else 0))
    cache[u][l] = s
    return s

q = int(input())
for i in range(q):
    u, l = map(int, input().split())
    print(solve(u - 1, l))


### FIXED CODE ###

# D - Knapsack Queries on a tree

from sys import stdin
import bisect

readline = stdin.readline
bisect_right = bisect.bisect_right

n = int(readline())

v = [0] * n
w = [0] * n
for i in range(n):
    v[i], w[i] = map(int, readline().split())

max_l = 10 ** 5
vshift = 21
mask = (1 << vshift) - 1

# dp table (for some amount)
dp = [None] * min(n, 2 ** 12)

# dp[vertex] = list of (weight, value)
dp[0] = [(0 << vshift) + 0, (w[0] << vshift) + v[0]]

for u in range(1, len(dp)):
    parent = (u - 1) // 2

    ls = dp[parent][:]
    ls.extend(x + (w[u] << vshift) + v[u] for x in dp[parent]
              if (x >> vshift) + w[u] <= max_l)
    ls.sort()

    # remove unnecessary entries
    tail = 0
    for i in range(1, len(ls)):
        if (ls[tail] >> vshift) == (ls[i] >> vshift):
            ls[tail] = ls[i]
        elif (ls[tail] & mask) < (ls[i] & mask):
            tail += 1
            ls[tail] = ls[i]
    del ls[tail + 1:]
    dp[u] = ls

def solve(u, l):
    if u < len(dp):
        x = bisect_right(dp[u], (l << vshift) + mask) - 1
        return dp[u][x] & mask

    parent = (u - 1) // 2
    s = solve(parent, l)
    if l >= w[u]:
        s = max(s, v[u] + solve(parent, l - w[u]))
    return s

q = int(readline())
for i in range(q):
    u, l = map(int, readline().split())
    print(solve(u - 1, l))
### BUGGY CODE ###

N=int(input())
ls=[]
for i in range(N):
  x=int(input())
  ls.append(x)
result=[]
result.append([ls[0]])
for i in range(1,N):
  j=1
  while(j<=len(result)):
    if(ls[i]>result[-j][-1]):
      result[-j].append(ls[i])
      break
    j=j+1
  if(j>len(result)):
    result.append([ls[i]])
print(len(result))

### FIXED CODE ###

import bisect
N=int(input())
ls=[int(input()) for _ in range(N)]
color=[ls[-1]]
ans=1
for i in range(N-1):
  a=ls[-2-i]
  k=bisect.bisect_right(color,a)
  if k==ans:
    color.append(a)
    ans+=1
  else:
    color[k]=a
print(ans)
### BUGGY CODE ###

n,k=map(int,input().split())
h=[0]*n
for i in range(n):
    h[i]=int(input())
h.sort()

ans=10**9
for i in range(n-k+1):
    ans= min(max(h[i:i+k])-min(h[i:i+k]), ans)
print(ans)


### FIXED CODE ###

n,k =map(int,input().split())
h=[0]*n
for i in range(n):
    h[i]=int(input())
h.sort()
ans=10**9
for i in range(n-k+1):
    ans= min(h[i+k-1]-h[i], ans)
print(ans)
### BUGGY CODE ###

import sys

def mink(numk,l):
    x = 1
    for _ in range(k):
        x = a[x-1]
    return x

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

# kが小さい時
if k <= 10**5:
    print(mink(k,a))
    sys.exit()

# ans = 0

z = 1
p = [1]
for _ in range(k):
    z = a[z-1]
    if z in p:
        p.append(z)
        break
    p.append(z)

# 周期の来る前の回数
num = p.index(p[-1])

p = p[num:]

# 周期
pn = len(p)-1

k -= num

# 回数/周期のあまり
anum = k%pn
print(p[anum])

### FIXED CODE ###

import sys

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

p = [1]
for i in range(n):
    p.append(a[p[i]-1])

if k <= n:
    print(p[k])
else:
    # 周期の来る前の回数
    num = p.index(p[-1])
    p = p[num:]

    # 周期
    pn = len(p)-1
    k -= num

    # 回数/周期のあまり
    ans = k%pn
    print(p[ans])