Harryxun/stf_run huggingface dataset:
N = int(input())
pl = []
mi = []

for i in range(N):
    _m = 0
    _t = 0
    s = input()
    for c in s:
        if c == ")":
            _t -= 1
            _m = min(_m, _t)
        else:
            _t += 1
    if _t > 0:
        pl.append([- _m, _t]) # sortの調整のために負にしている
    else:
        mi.append([_m, - _t])
pl = sorted(pl)
mi = sorted(mi)

import IPython;IPython.embed()


if len(pl) == 0:
    if mi[0][0] == 0:
        print("Yes")
    else:
        print("No")
    exit()
if len(mi) == 0:
    print("No")
    exit()

tot = 0
for m, nt in pl:
    if tot - m < 0:
        print("No")
        exit()
    else:
        tot += nt
for m, nt in mi:
    if tot + m <0:
        print("No")
        exit()
    else:
        tot -= nt
if tot != 0:
    print("No")
else:
    print("Yes")
        



# どういう時できるか
# で並べ方
# tot, minの情報が必要
# totが+のものはminとtotを気をつける必要がある
# minがsum以上であればどんどん足していけばいい.
# なのでminが小さい順にsortし,totの大きい順にsort
# その次はtotがminusの中ではminが小さい順に加える
# 合計が0になる時Yes,それ意外No.

### FIXED CODE ###

N = int(input())
pl = []
mi = []

for i in range(N):
    _m = 0
    _t = 0
    s = input()
    for c in s:
        if c == ")":
            _t -= 1
            _m = min(_m, _t)
        else:
            _t += 1
    if _t > 0:
        pl.append([-_m, -_t]) # sortの調整のために負にしている
    else:
        mi.append([- _t + _m,  _m, _t])
pl = sorted(pl)
mi = sorted(mi)

#import IPython;IPython.embed()


if len(pl) == 0:
    if mi[0][0] == 0:
        print("Yes")
    else:
        print("No")
    exit()
if len(mi) == 0:
    print("No")
    exit()

tot = 0
for m, nt in pl:
    if tot - m < 0: # これはひくではないのでは?
        print("No")
        exit()
    else:
        tot -= nt
for d, m, nt in mi:
    if tot + m <0:
        print("No")
        exit()
    else:
        tot += nt
if tot != 0:
    print("No")
else:
    print("Yes")
        



# どういう時できるか
# で並べ方
# tot, minの情報が必要
# totが+のものはminとtotを気をつける必要がある
# minがsum以上であればどんどん足していけばいい.
# なのでminが大きい順にsortし,totの大きい順にsort
# その次はtotがminusの中ではminが小さい順に加える
# 合計が0になる時Yes,それ意外No.
H, W=map(int, input().split)
print((H*W+1)//2)

### FIXED CODE ###

H, W=map(int, input().split())
if H==1 or W==1:
    print(1)
else:
    print((H*W+1)//2)
import numpy as np
stdin = open(0)

N,K = map(int,input().split())
A = np.array(stdin.read().split(), np.int64)
A = np.sort(A)

maxA = max(np.abs(A))


z = A[A==0]
p = A[A>0]
n = A[A<0]


def check(x):
    ret = 0
    if x >= 0:
        ret += N*len(z)
    ret += np.searchsorted(A,x//p,side='right').sum()
    ret += (N-np.searchsorted(A,x/n)).sum()
    ret -= len([a for a in A if a*a <= x])
    return ret//2;
        

ub = maxA*maxA
lb = -ub-1
while ub-lb > 1:
    mid = (ub+lb)>>1
    if check(mid) < K:
        lb = mid
    else:
        ub = mid
print(ub)

### FIXED CODE ###

import numpy as np
import math
stdin = open(0)

N,K = map(int,input().split())
A = np.array([int(Ai) for Ai in input().split()])
A = np.sort(A)

maxA = max(np.abs(A))

z = A[A==0]
p = A[A>0]
n = A[A<0]

def check(x):
    ret = 0
    if x >= 0:
        ret += N*len(z)
    ret += np.searchsorted(A,x//p,side='right').sum()
    ret += (N - np.searchsorted(A, (-x - 1) // (-n), side='right')).sum()
#     ret += (N-np.searchsorted(A,np.ceil(x/n))).sum()
    ret -= np.count_nonzero(A*A<=x)
    return ret//2;

ub = maxA*maxA
lb = -ub-1
while ub-lb > 1:
    mid = (ub+lb)>>1
    if check(mid) < K:
        lb = mid
    else:
        ub = mid
print(ub)
x, y = map(int, read().split())
print(x*y, 2*(x+y))

### FIXED CODE ###

a, b = map(int, input().split())
print("{} {}".format(a*b, (a+b)*2))
a, b = map(int, sys.stdin.readline().strip())
sys.stdout.write(max(a+b, a-b, a*b) + '\n')

### FIXED CODE ###

num = input()
a = int(num.split(' ')[0])
b = int(num.split(' ')[1])


c = [a+b,a-b,a*b]

print(max(c))
n,k=map(int,input())

s=k*(k-1)**(n-1)

print(s)

### FIXED CODE ###

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

s=k*(k-1)**(n-1)

print(s)
n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
c = list(map(int,input().split()))
ans = 0
for i in range(n):
    ans += b[a[i]-1]
    if i < n-1 and a[i+1] == a[i] + 1:
        ans += c[a[i]-1]
print(ans)

### FIXED CODE ###

n = int(input())
a = list(map(int,input().split()))
b = list(map(int,input().split()))
c = list(map(int,input().split()))
ans = 0
for i in range(n):
    ans += b[a[i]-1]
    if i < n-1 and a[i+1] == a[i] + 1:
        ans += c[a[i]-1]
print(ans)
number = int(input())
rate = [int(i) for i in input().split()]


# In[7]:

counter = {}
for r in rate:
    if 1 <= r < 400:
        counter["grey"] = counter.get("grey", 0) + 1
    if 400 <= r < 800:
        counter["brown"] = counter.get("brown", 0) + 1
    if 800 <= r < 1200:
        counter["green"] = counter.get("green", 0) + 1
    if 1200 <= r < 1600:
        counter["sky"] = counter.get("sky", 0) + 1
    if 1600 <= r < 2000:
        counter["blue"] = counter.get("blue", 0) + 1
    if 2000 <= r < 2400:
        counter["yellow"] = counter.get("yellow", 0) + 1
    if 2400 <= r < 2800:
        counter["orange"] = counter.get("orange", 0) + 1
    if 2800 <= r < 3200:
        counter["red"] = counter.get("red", 0) + 1
    if 3200 <= r:
        counter["color"] = counter.get("color", 0) + 1

answer = 0
for k, v in counter.items():
    if not v == 0:
        answer += 1
        
if counter.get("color", 0) == 0:
    print(str(answer) + " " + str(answer))
else:
    if answer == 1:
        print("1 " + str(counter["color"]))
    else:
        print(str(answer-1) + " " + str(answer-1+counter["color"]))


### FIXED CODE ###

numbers = [i for i in input().split()]
number = numbers[0] + numbers[1] + numbers[2]
number = int(number)

if number % 4:
    print("NO")
else:
    print("YES")
num=input()
if num%100==num:
    print("YES")
else:
    print("NO")

### FIXED CODE ###

num=input()

if num[0]==num[2]:
    print("Yes")
else:
    print("No")
k=int(input())
import math
if k==1:
    print(1)
else:
    s1=k*(k+1)//2
    s2=k-1
    for i in range(2,k):
        for j in range(i+1,k+1):
                s2+=math.gcd(i,j)
    s2=s2*6
    s3=0
    if k>2:
        for a in range(1,k-1):
            for b in range(a+1,k):
                for c in range(b+1,k+1):
                    s3+=math.gcd(math.gcd(a,b),c)
        s3=s3*6
print(s1+s2+s3)


### FIXED CODE ###

k=int(input())
import math
if k==1:
    print(1)
else:
    s1=k*(k+1)//2
    s2=k-1
    for i in range(2,k):
        for j in range(i+1,k+1):
                s2+=math.gcd(i,j)
    s2=s2*6
    s3=0
    if k>2:
        for a in range(1,k-1):
            for b in range(a+1,k):
                for c in range(b+1,k+1):
                    s3+=math.gcd(math.gcd(a,b),c)
        s3=s3*6
    print(s1+s2+s3)
n,a = map(int,input().split())
print(n**2-a)

### FIXED CODE ###

n = int(input())
a = int(input())
print(n**2-a)
L,R = map(int,input().split())

a = list(range(L,R+1))

N = len(a)
r = 0
total = []

for l in range(N):
  r = l + 1
  while r < N:
    total.append((a[l]*a[r])%2019)
    r += 1
  if l == r:
    l += 1
    
print(min(total))

### FIXED CODE ###

L,R = map(int,input().split())

total = 2019

if R-L >= 2019:
  print(0)
  exit()

for l in range(L,R):
  for r in range(L+1,R+1):
    if l*r%2019 == 0:
      print(0)
      exit()
    else:
      total = min(total,l*r%2019)
    
print(total)
import math
def lcm(x, y):
    return (x * y) // math.gcd(x, y)

A, B = list(map(int, input().split()))
print(lcm(A, B))


### FIXED CODE ###

import fractions
def lcm(x, y):
    return (x * y) // fractions.gcd(x, y)
A, B = list(map(int, input().split()))
print(lcm(A, B))
n,m=map(int,input().split())
if(n+m>=2):
  if(n==1 or n==0):
    print(m*(m-1)/2)
  else if(m==1 or m==0):
    print(n*(n-1)/2)
    
  else:
    print((n*(n-1)/2)+(m*(m-1)/2))

### FIXED CODE ###

n,m=map(int,input().split())
if(n+m>=2 and n>=0 and n<=100 and m<=100 and m>=0):
    ans=int(round(n*(n-1)/2)+(m*(m-1)/2))
    print(ans)
def resolve():
    N, M = map(int, input().split())

    person_group = [0] * (N+5)
    group_counter = 0
    member_counter = {0: 0}

    def _marge_group(a, b):
        for i in range(len(person_group)):
            if person_group[i] == b:
                person_group[i] == a
        member_counter[a] = member_counter[a] + member_counter.pop(b)

    for _ in range(M):
        A, B = map(int, input().split())
        A -= 1
        B -= 1
        if person_group[A] == 0 and person_group[B] == 0:
            group_counter += 1
            person_group[A] = group_counter
            person_group[B] = group_counter
            member_counter[group_counter] = 2
        elif person_group[A] != 0 and person_group[B] == 0:
            person_group[B] = person_group[A]
            member_counter[person_group[A]] += 1
        elif person_group[A] == 0 and person_group[B] != 0:
            person_group[A] = person_group[B]
            member_counter[person_group[B]] += 1
        else:
            if person_group[A] == person_group[B]:
                continue
            else:
                _marge_group(person_group[A], person_group[B])
    print(max(member_counter.values()))

if __name__ == "__main__":
    resolve()

### FIXED CODE ###

class UnionFind():
    def __init__(self, n: int):
        """
        n: ノード数
        """
        self.n = n
        """
        d: UnionFind木のデータ構造
            各要素の根要素を格納するリスト
            根要素の場合は, グループの要素数*-1を格納する
        """
        self.d = [-1] * n

    def find(self, x: int) -> int:
        """
        要素xが属するグループの根を返す
        """
        if self.d[x] < 0:
            return x
        else:
            self.d[x] = self.find(self.d[x])
            return self.d[x]

    def unite(self, x: int, y: int) -> bool:
        """
        要素xが属するグループと, 要素yが属するグループを併合する
        """
        x = self.find(x)
        y = self.find(y)
        if x == y:
            return False

        if self.d[x] > self.d[y]:
            x, y = y, x
        self.d[x] += self.d[y]
        self.d[y] = x
        return True

    def same(self, x: int, y: int) -> bool:
        """
        要素x, yが同じグループに属するかどうかを返す
        """
        return self.find(x) == self.find(y)

    def size(self, x: int) -> int:
        """
        要素xが属するグループのサイズ(要素数)を返す
        """
        return -self.d[self.find(x)]

    def members(self, x: int) -> list:
        """
        要素xが属するグループの要素をリストで返す
        """
        root = self.find(x)
        return [i for i in range(self.n) if self.find(i) == root]

    def groups(self) -> list:
        """
        すべての根の要素をリストで返す
        """
        return [i for i, x in enumerate(self.d) if x < 0]

    def group_count(self) -> int:
        """
        グループの数を返す
        """
        return len(self.groups())


def resolve():
    N, M = map(int, input().split())

    uf = UnionFind(N)

    for _ in range(M):
        A, B = map(int, input().split())
        uf.unite(A-1, B-1)

    ans = 0
    for i in uf.groups():
        ans = max(ans, uf.size(i))
    print(ans)

if __name__ == "__main__":
    resolve()
S = input().split(" ")
sum = 0
for i in S:
  sum = sum + i
if(sum >21):
  print("bust")
else:
  print("win")

### FIXED CODE ###

S = input().split(" ")
sum = 0
for i in S:
  sum = sum + int(i)
if(sum >21):
  print("bust")
else:
  print("win")
import sys

from math import gcd

#+++++
		
		
def main2():
	#print(gcd(100,55))
	
	n = int(input())
	al = list(map(int, input().split()))
	
	if n == 2:
		return max(al)
	
	nu=[0]*len(al)
	fi=0
	snd=0
	for i, _ in enumerate(nu):
		vv=al[0]
		for j, v in enumerate(al):
			if i==j:
				continue
			vv=gcd(vv, v)
		ans = max(ans, vv)
	
	print(ans)
	
def main():
	#print(gcd(100,55))
	
	n = int(input())
	al = list(map(int, input().split()))
	
	if n == 2:
		return max(al)
	
	from_left=[0]*len(al)
	kk=al[0]
	for i, v in enumerate(al):
		kk=gcd(kk,v)
		from_left[i]=kk
	
	from_right=[0]*len(al)
	kk=al[-1]
	for i,v in enumerate(al[::-1]):
		kk=gcd(kk,v)
		from_right[i]=kk
	from_right=from_right[::-1]
	
	ans=0
	#pa(from_right)
	#pa(from_left)
	#sayuukara
	for i,_ in enumerate(al):
		if i == 0:
			vv=from_right[1]
		elif i == len(al)-1:
			vv=from_left[-2]
		else:
			a=from_right[i+1]
			b=from_left[i-1]
			#pa((a,b))
			vv=gcd(a,b)
		ans = max(ans, vv)
	
	print(ans)




#+++++
isTest=False

def pa(v):
	if isTest:
		print(v)

if __name__ == "__main__":
	if sys.platform =='ios':
		sys.stdin=open('inputFile.txt')
		isTest=True
	else:
		pass
		#input = sys.stdin.readline
			
	ret = main()
	if ret is not None:
		print(ret)

### FIXED CODE ###

import sys
#from math import gcd

#+++++

def gcd(a,b):
	if a < b:
		a,b=b,a
		
	while a != b:
		t=a%b
		if t == 0:
			return b
		else:
			a,b = b,t
	return a
	
def main():
	n = int(input())
	al = list(map(int, input().split()))
	
	if n == 2:
		return max(al)
	
	from_left=[0]*len(al)
	kk=al[0]
	for i, v in enumerate(al):
		kk=gcd(kk,v)
		from_left[i]=kk
	
	from_right=[0]*len(al)
	kk=al[-1]
	for i,v in enumerate(al[::-1]):
		kk=gcd(kk,v)
		from_right[i]=kk
	from_right=from_right[::-1]
	
	ans=0
	for i,_ in enumerate(al):
		if i == 0:
			vv=from_right[1]
		elif i == len(al)-1:
			vv=from_left[-2]
		else:
			a=from_right[i+1]
			b=from_left[i-1]
			#pa((a,b))
			vv=gcd(a,b)
		ans = max(ans, vv)
	print(ans)




#+++++

if __name__ == "__main__":
	if sys.platform =='ios':
		sys.stdin=open('inputFile.txt')
	else:
		pass
		#input = sys.stdin.readline
			
	ret = main()
	if ret is not None:
		print(ret)
s = int(input())
b = [s]
n = len(s)
a = b[n-1]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')


### FIXED CODE ###

s = input()
n = len(s)
a = s[n-1:n]
if a == '2' or a == '4' or a == '5' or a == '7' or a == '9':
  print('hon')
elif a == '0' or a == '1' or a == '6' or a == '8':
  print('pon')
else:
  print('bon')
import sys
N, M = map(int, input().split())
A = [tuple(map(int, line.split())) for line in sys.stdin.buffer.readlines()]
A.sort()
cnt = 0
R = 0
for a, b in A:
    if R <= a:
        cnt += 1
        R = b
    elif b < R:
        R = b
print(cnt)


### FIXED CODE ###

N, M, *A = map(int, open(0).read().split())
*A, = zip(*[iter(A)]*2)
A.sort()
cnt = 0
R = 0
for a, b in A:
    if R <= a:
        cnt += 1
        R = b
    elif b < R:
        R = b
print(cnt)
n=int(input())
a=[]
for i in range(1,n):
    a[i]=int(input())



### FIXED CODE ###


def is_prime(n):

    if n == 2:
        return True
    elif n < 2 or n & 1 == 0:
        return False
    for i in range(3, int(n**0.5) + 1, 2):
        if n % i == 0:
            return False
    return True

N = int(input())
cnt = 0
for i in range(N):
    e = int(input())
    if is_prime(e):
        cnt += 1
print(cnt)
N = int(input())
vs = sorted(map(int, input().split(" ")), reverse=True)

r = [v * (0.5 ** i) for i, v in enumerate(vs)]

return sum(r)

### FIXED CODE ###

N = int(input())
vs = sorted(map(int, input().split(" ")), reverse=True)
 
r = [v * (0.5 ** (i + 1)) for i, v in enumerate(vs)]
r [-1] = r[-1] * 2
print(sum(r))
def solve():
    
    N = int(input())
    a  = list(map(int, input().split()))

    lists = [0] * ((10**5)+2)

    for i in range(a):
        lists[v] += 1
        lists[v+1] += 1
        lists[v-1] += 1

    print(max(lists))    

if __name__ = "__main__":
    solve()


### FIXED CODE ###

def solve():
    
    N = int(input())
    a  = list(map(int, input().split()))

    lists = [0] * ((10**5)+2)

    for i in a:
        lists[i] += 1
        lists[i+1] += 1
        lists[i-1] += 1

    print(max(lists))    

if __name__ == "__main__":
    solve()
def main(a, b):
    days = a * 30 + b

    count = 0
    for i in range(1, min(a, b) + 1):
        if isinstance(int, (days // i * 30 + b)):
            count += 1

    return count

if __name__ == '__main__':
    print(main(map(int, input().split(' '))))


### FIXED CODE ###

def main(a, b):
    if b < a:
        return a-1
    else:
        return a


if __name__ == '__main__':
    a, b = map(int, input().split(' '))
    print(main(a, b))
N , K = map(int, input().split())
A = list(map(int, input().split()))

cnt_all = 0
cnt_right = 0
cnt_minA_all = []
cnt_minA_right = []

for i in range(N):
    for j in range(N):
        if A[i] > A[j]:
            cnt_all += 1
            if i < j:
                cnt_right += 1
    else:
        cnt_minA_all.append(cnt_all)
        cnt_all = 0
        cnt_minA_right.append(cnt_right)
        cnt_right = 0

ans = sum(cnt_minA_right) * K % (10**9+7)
ans += (sum(cnt_minA_all) * K % (10**9+7)

print(ans)

### FIXED CODE ###

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

whole = 0
right = 0
whole_list = []
right_list = []

for i in range(N):
    for j in range(N):
        if A[i] > A[j]:
            whole += 1
            if i < j:
                right += 1
    else:
        whole_list.append(whole)
        whole = 0
        right_list.append(right)
        right = 0

mod = 10 ** 9 + 7
ans = sum(right_list) * K
ans += sum(whole_list) * (K - 1) * K // 2

print(ans % mod)
N, M = map(int, input().split())

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)

    divisors.sort()
    return divisors

for i in make_divisors(M):
    if i < M // N:
        ans = i 
print(ans)

### FIXED CODE ###

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

def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)

    divisors.sort()
    return divisors

for i in make_divisors(M):
    if i <= M // N:
        ans = i 

print(ans)
l,r = map(int, input().split())
gap = r-l

vlist = []
mini = 2019
xlist = []

for x in range(gap+1):
    v = (l+x) % 2019
    vlist.append(v)

mini = min(vlist)
for x in vlist:
    if v <= mini+1:
        xlist.append(x)
        

xlist.sort()
#print(vlist)

#res = i*j % 2019
print((vlist[0]*vlist[1])%2019)

### FIXED CODE ###

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

train = n*a
taxi = b
print(min(train,taxi))
def main ():
N = int(input())
A = list(map(int,input(). split ()))
if 0 in A:
print(0)
return
prod = 1
for a in A:
prod *= a
if prod > 1000000000000000000:
print(-1)
return
print(prod)
main ()

### FIXED CODE ###

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

ans=1

if 0 in A:
    print(0)
    exit()

for i in A:
   ans=ans*i
   if ans>10**18:
    print(-1)
    exit()


print(ans)
ar=map(int,input().split())
print(ar[0]<10 and ar[1]<10)

### FIXED CODE ###

ar=list(map(int,input().split()))
if ar[1]<10 and ar[0]<10:
  print(ar[0]*ar[1])
else:
  print(-1)
i = map(int, raw_input().split())
a=i[0]
b=i[1]
print("%d %d" % (a*b, (a+b)*2))

### FIXED CODE ###

a, b = map(int, raw_input().split())
print("%d %d" % (a*b, (a+b)*2))
N, W = map(int, input().split())

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

for i in range(N):
    for sum_w in range(W+1):
        # i 番目の品物を選ぶ場合
        if sum_w >= weight[i]:
            dp[i+1][sum_w] = max(dp[i+1][sum_w], dp[i][sum_w - weight[i]] + value[i])
        # i 番目の品物を選ばない場合
        dp[i+1][sum_w] = max(dp[i+1][sum_w], dp[i][sum_w])

print(dp[N][W])


### FIXED CODE ###

N, W = map(int, input().split())
INF = float('inf')
MAX_V = 100100

dp = [[INF for _ in range(MAX_V+1)] for _ in range(N+1)]
dp[0][0] = 0
weight = []
value = []
for i in range(N):
    w, v = map(int, input().split())
    weight.append(w)
    value.append(v)

for i in range(N):
    for sum_v in range(MAX_V + 1):
        # i 番目の品物を選ぶ場合
        if sum_v - value[i] >= 0:
            dp[i+1][sum_v] = min(dp[i+1][sum_v], dp[i][sum_v - value[i]] + weight[i])
        # i 番目の品物を選ばない場合
        dp[i+1][sum_v] = min(dp[i+1][sum_v], dp[i][sum_v])

ans = 0
for sum_v in range(MAX_V + 1):
    if dp[N][sum_v] <= W:
        ans = sum_v

print(ans)
# -*- coding: utf-8 -*-
# 整数の入力
a = int(input())
n*n*n
# 出力
print("{}".format(n**3))

### FIXED CODE ###

# -*- coding: utf-8 -*-
# 整数の入力
n = int(input())
# 出力
print("{}".format(n**3))
from fractions import Fraction
N=int(input())
l=[]
for i in range(N):
    k=int(input())
    x=Fraction(1, k)
    l.append(x)

p=sum(l)
y=float(1/p)
print(y)

### FIXED CODE ###

a = int(input())
l=list(map(int ,input().split()))
ll=[]
for i in range(a):
        j=1/l[i]
        ll.append(j)
k=sum(ll)
print(1/k)
h,w=map(int,input().split())
if h=1 or w==1:
    print("1")
elif h%2==0:
    print((h*w)//2)
elif w%2==0:
    print((h*w)//2)
else:
    print((w*(h//2))+(w//2)+1)


### FIXED CODE ###

h,w=map(int,input().split())
if h==1 or w==1:
  print("1")
elif h%2==0:
    print((h*w)//2)
elif w%2==0:
    print((h*w)//2)
else:
    print((w*(h//2))+(w//2)+1)
n,k=map(int,input().split())
k=k%n
al=list(map(int,input().split()))
pos=0
for val in range(len(al)):
   al[val]-=1
while(k!=0):
  i=pos
  pos=al[i]
  k-=1
print(pos+1)


### FIXED CODE ###

s1=str(input())
s2=str(input())
if (len(s2)-len(s1)!=1):
  print('No')
Flag='Yes'
for val in range(len(s1)):
  if(s1[val]!=s2[val]):
    Flag='No'
print(Flag)
def fun(s):
    n = len(s)
    ans = 0
    for bit in range(1 << (n-1)):
        f = s[0]
        for i in range(n-1):
            if bit & (1 << i):
                print(1 << i)
                f += "+"
            f += s[i+1]
        ans += sum(map(int, f.split('+')))

    return ans

print(fun(s))

### FIXED CODE ###

s = input()
n = len(s)

ans = 0

for bit in range(1 << (n - 1)):
    f = s[0]

    for i in range(n - 1):
        # ここのif文の判定基準が理解できていません。
        if bit & (1 << i):
            f += "+"
        f += s[i + 1]

    ans += sum(map(int, f.split("+")))

print(ans)
N, M = map(int, input().split())
lis = [int(x) for x in input().split()]
lis.sort()
if N >= M:
  print(0)
else:
  lis2 = []
  for i in range(M - 1):
    lis2.append(lis[i + 1] - lis[i])
  lis2.sort(reverse = True)
  k = 0
  for i in range(N - 1, M - 1)

### FIXED CODE ###

N, M = map(int, input().split())
lis = [int(x) for x in input().split()]
lis.sort()
if N >= M:
  print(0)
else:
  lis2 = []
  for i in range(M - 1):
    lis2.append(lis[i + 1] - lis[i])
  lis2.sort(reverse = True)
  k = 0
  for i in range(N - 1, M - 1):
    k += lis2[i]
  print(k)
S = str( input() )
T = str( input() )
A = int( input() )
B = int( input() )
U = str( input() )

if( S==U ):
    A-=1
if( T==U ):
    B-=1

print( str(A)+" "+str(B) )

### FIXED CODE ###

S, T = input().split()
A, B = map( int, input().split() )
U    = input()

if( S==U ):
    A-=1
if( T==U ):
    B-=1

print( str(A)+" "+str(B) )
a,b=map(int, input().split())
c=list(map(int, input().split()))
d -= 1
print(a//d)

### FIXED CODE ###

import math
n, k = map(int,input().split())
input()
print(math.ceil((n-1)/(k-1)))
n,k = map(int,input().split())
A = list(map(int,input().split()))

b = 1
c = 0
while b <= k:
  b *= 2
  c += 1

B = [0]*c
for a in A:
  for i in range(c):
    if a>>i & 1 :      
      B[i] += 1
    
x = 0
for i in range(c):
  if B[i] <= n/2:
    x += 1<<i
    
flag = 0    
for i in range(c):
  if k>>(4-i) == 0 and x>>(4-i)==1:
    x -= 1<<(4-i)
    break

ans = 0
for a in A:
  ans += x^a
  
print(ans)  

### FIXED CODE ###

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

b = 1
c = 0
while b <= k:
  b *= 2
  c += 1

B = [0]*(c)
for a in A:
  for i in range(c):
    if a>>i & 1 :      
      B[i] += 1
      
x = 0
for b in range(c,-1,-1):
  if x + (1<<b) > k:
    continue
  if B[b] < (n+1)//2:
    x += 1<<b
    
ans = 0
for a in A:
  ans += x^a
print(ans)
import sys
import math

for line in sys.stdin:
  a, b = [int(i) for i in line.split()]
  print(int(math.log10(a * b) + 1))

### FIXED CODE ###

import sys
import math

for line in sys.stdin:
  try:
    a, b = [int(i) for i in line.split()]
    print(int(math.log10(a + b) + 1))
  except:
    break