Harryxun/stf_run huggingface dataset:
def get_gcd(a, b):
  if b > a:
    a, b = b, a
    r = a%b
    if r == 0:
      return b
    else:
      return get_gcd(b, r)

    def prime_factorize(n):
      answers = []
      while n % 2 == 0:
        answers.append(2)
        n //= 2
        f = 3
        while f**2 <= n:  # instead of f <= n**0.5
          if n % f == 0:
            answers.append(f)
            n //= f
            else:
              f += 2
              if n != 1:
                answers.append(n)
                return answers

A, B = map(int, input().split())
gcd = get_gcd(A, B)
factors = prime_factorize(gcd)
print(len(set(factors)))

### FIXED CODE ###

def get_gcd(a, b):
    if b > a:
        a, b = b, a
    r = a%b
    if r == 0:
        return b
    else:
        return get_gcd(b, r)


def prime_factorize(n):
    answers = []
    while n % 2 == 0:
        answers.append(2)
        n //= 2
    f = 3
    while f**2 <= n:  # instead of f <= n**0.5
        if n % f == 0:
            answers.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        answers.append(n)
    return answers

A, B = map(int, input().split())
gcd = get_gcd(A, B)
factors = prime_factorize(gcd)
print(len(set(factors+[1])))
from functools import reduce
from collections import Counter
N,P = map(int,input().split())
import math
s=0
R=int(P)
L=[]
while s==0:
    for i in range(2,R+1):
        if P%i==0:
            P=P/i
            if P==1:
                s=1
            L.append(i)
            break

            
c = Counter(L)
temp = [i[0] for i in c.items() if i[1] >= N]
print(reduce(lambda x,y:x*y,temp))

### FIXED CODE ###

N,P = map(int,input().split())
i = round(P**(1/N))
res = []
if N == 1:
  print(P)
elif P == 1:
  print(1)
else:
  for i in range(i,0,-1):
    if P%i**N==0:
      print(i)
      break
X, K, D = (int(x) for x in input().split())
X = abs(X)

straight = min(K, X // D)
K -= straight
X -= straight * D

if K % 2 == 0:
    print(X)
else:
    print(D-X)

### FIXED CODE ###

S = input()
s_num = len(S)

i=0
max_count = 0
count = 0

while i < s_num:
    if S[i] != "R":
        if max_count < count:
            max_count = count
            count = 0
    elif S[i] == "R":
        count += 1

    i+=1

if max_count < count:
    max_count = count

print(max_count)
n,k=map(int,input().split())
h=list(map(int,input().split()))
dp=[10**5]*n
dp[0]=0
for i in range(n):
    pow=1
    while pow<=n:
        dp[i]=min(dp[i],dp[i-pow]+1)
        pow*=6
    pow=1
    while pow<=n:
        dp[i]=min(dp[i],dp[i-pow]+1)
        pow*=9
print(dp[n-1])

### FIXED CODE ###

n=int(input())
dp=[10**5]*(n+1)
dp[0]=0
for i in range(n+1):
    pow=1
    while pow<=n:
        dp[i]=min(dp[i],dp[i-pow]+1)
        pow*=6
    pow=1
    while pow<=n:
        dp[i]=min(dp[i],dp[i-pow]+1)
        pow*=9
print(dp[n])
s=input()
K=int(input())

sub_list=[]

for i in range(len(s)):
    for j in range(1,K+1):
        if(i+j<len(s)):
            sub_list.append(s[i:i+j])

sub_set=set(sub_list)
sub_dict=sorted(sub_set,key=str)

print(sub_dict[K-1])

### FIXED CODE ###

s=input()
K=int(input())

sub_list=[]
i,j=0,1
while True:
    if(i+j>=len(s) and i==len(s)):
        break
    else:
        sub_list.append(s[i:i+j])
        if(j<=K):
            j+=1
        else:
            i+=1
            j=1
set_list=set(sub_list)

dict_list=list(set_list)
dict_list.sort(key=str)

print(dict_list[K-1])
N = input().split()
i = [int(input()) for i in range(int(N[0]))]

count=0
for j in i:
    if(j>=int(N[1])):
        count+=1

print(count)


### FIXED CODE ###

N = input().split()
i = input().split()

count=0
for j in i:
    if(int(j)>=int(N[1])):
        count+=1

print(count)
n=int(input())
l=[]
for i in range(n):
  print(i)
  l.append(input())
print(len(s))

### FIXED CODE ###

n=int(input())
l=[]
for i in range(n):
  l.append(input())
s=set(l)
print(len(s))
import sys
sys.setrecursionlimit(40000)
def func(pos, t, x):

    if pos + t == x:
        return t
    elif pos + t < x:
        new_pos = pos + t
        t += 1
        return func(new_pos, t, x)
    else:
        new_pos = pos - t
        t -= 1
        return func(new_pos, t, x)
    
def slove(x):
    ans = func(0,0,x)
    return ans
if __name__ == "__main__":
    x = int(input())
    print(slove(x))


### FIXED CODE ###

def slove(x):
    t = 1
    ans = t
    while ans <x:
        t += 1
        ans += t
    return t
if __name__ == "__main__":
    x = int(input())
    print(slove(x))
N, K = map(int, input().split())
Pn = list(map(int, input().split()))

Pn.sort()
s = 0
for i in range(K):
	s += Pn[K]

print(s)

### FIXED CODE ###

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

P.sort()
s = 0
for i in range(K):
	s += P[i]

print(s)
MOD = 10 ** 9 + 7


def f(index, l):
    if index == len(l):
        return 1
    if l[index] == '1':
        return (3 ** (len(l)-1-index) + 2 * f(index+1, l) ) % MOD
    else:
        return f(index+1, l) % MOD


def main():
    l = input()
    print(f(0, l))

main()

### FIXED CODE ###

import sys
sys.setrecursionlimit(1000000)
MOD = 10 ** 9 + 7


def f(index, l):
    if index == len(l):
        return 1
    if l[index] == '1':
        return ( 3 ** (len(l)-1-index) + 2 * f(index+1, l) ) % MOD
    else:
        return f(index+1, l) % MOD


def main():
    l = input()
    n = len(l)
    one = 0
    ans = 0
    for i in range(n):
        if l[i] == '1':
            ans += pow(2, one, MOD) * pow(3, n-1-i, MOD)
            ans %= MOD
            one += 1
    ans += pow(2, one, MOD)
    ans %= MOD
    print(ans)

main()
import sys
import math

def get_read_func(fileobject):
    if fileobject == None :
        return raw_input
    else:
        return fileobject.readline


def main():
    if len(sys.argv) > 1:
        f = open(sys.argv[1])
    else:
        f = None
    read_func = get_read_func(f);
    input_raw = read_func()
    top_str = input_raw.strip().split()
    [N] = [int(top_str[0])]

    min_F = sys.maxint
    digit = int(math.log10(N) + 1)
    for i in range(10 ** int((digit - 1)/2.0 + 0.5) , 0 , -1):
        if(N % i == 0):
            A = i
            B = N/i
            F = max(int(math.log10(A) + 1), int(math.log10(B) + 1))
            if F < min_F:
                min_F = F
            #break
    print min_F



if __name__ == '__main__':
    main()

### FIXED CODE ###

import sys

def get_read_func(fileobject):
    if fileobject == None :
        return raw_input
    else:
        return fileobject.readline

def main():
    if len(sys.argv) > 1:
        f = open(sys.argv[1])
    else:
        f = None
    read_func = get_read_func(f);
    input_raw = read_func()
    top_str = input_raw.strip().split()
    [A, B] = [int(top_str[0]), int(top_str[1])]
    T = (A + B) % 24
    print T

if __name__ == '__main__':
    main()
n=int(input())
a=[list(input().split()) for i in range(n)]
ans=0
for i in range(n):
  if a[i][1]=="JPY":
    ans+=float(a[i][0])
  else:
    ans+=float(a[i][0]*380000)
print(ans)

### FIXED CODE ###

n=int(input())
a=[list(input().split()) for i in range(n)]
ans=0
for i in range(n):
  if a[i][1]=="JPY":
    ans+=float(a[i][0])
  else:
    ans+=float(a[i][0])*380000
print(ans)
value = input()
if value.count(5) ==2:
  if value.count(7) ==1:
    print('YES')
  else:
    print('NO')
else:
  print('NO')
  


### FIXED CODE ###

value = input()
if value.count("5") ==2:
  if value.count("7") ==1:
    print('YES')
  else:
    print('NO')
else:
  print('NO')
n,m,r=map(int,input().split());
a=n+r-n*m-1;b=r-n*m;
s=1;
if a<b or a<0 or b<0:s=0;
else:
    if b>a-b:b=a-b;
	for i in range(b):s=s*(a-i)/(i+1);
print(s)


### FIXED CODE ###

n,m,r=map(int,input().split());
a=n+r-n*m-1;b=r-n*m;
s=1;
if a<b or a<0 or b<0:s=0;
else:
    if b>a-b:b=a-b;
    for i in range(b):s=s*(a-i)//(i+1);
print(s)
n = int(input())
h = [int(input()) for i in range(n)]
result = 1
now_max = h[0]

for i in range(1,n):
  if h[i] >= now_max:
    result = result + 1
    now_max = h[i]
             
print(result)

### FIXED CODE ###

n = int(input())
h = list(map(int,input().split(" ")))

result = 0
now_max = 0

for i in range(n):
    if h[i] >= now_max:
        result = result + 1
        now_max = h[i]

print(result)
# coding: utf-8
i = input()
print(i * i)

### FIXED CODE ###

# coding: utf-8
i = int(input())
print(i * i)
S=input()
print(S[0]+len(S[1:-1])+S[-1])

### FIXED CODE ###

S=input()
print(S[0]+str(len(S[1:-1]))+S[-1])
S = input()
w = input()
ans = ''

for i in range(0, w, len(S)):
    lit = S[i:i+w]
    ans = ans + lit[0]


### FIXED CODE ###

S = input()
w = input()
w = int(w)
ans = ''

for i in range(0, len(S), w):
    lit = S[i:i+w]
    ans = ans + lit[0]

print(ans)
import math

N, M = map(int, raw_input().split())
a = []
for i in range(N+M):
    a.append(map(int, raw_input().split()))

b=[]

def mhtn(a,b,c,d):
    return 

for i in range(N):
    best=4*10e8
    num=0
    for j in range(M):
        x=math.fabs(a[i][0]-a[N+j][0])+math.fabs(a[i][1]-a[N+j][1])
        
        if(best>x):
            best=x
            num=j+1
    b.append(num)

for i in b:
    print i

### FIXED CODE ###

l = map(int, raw_input().split())

time=(l[0]+l[1])%24

print time
a = int(input())
b = int(input())

print("%d"%(a*b))
print(" %d"%(2*a+2*b))

### FIXED CODE ###

a,b = map(int, raw_input().split())
c = a*b
d = 2*(a+b)
print'%d %d'%(c,d)
s=input()
n=len(s)
l=[0]*2019
l[0]=1
k=0
mod=2019
r=1
for i in range(n-1,-1,-1):
  k+=s[i]*r
  r*=10
  r%=mod
  l[k]+=1
ans=0
for i in l:
  ans+=i*(i-1)//2
print(ans)

### FIXED CODE ###

s=input()
n=len(s)
l=[0]*2019
l[0]=1
k=0
mod=2019
r=1
for i in range(n-1,-1,-1):
  k+=int(s[i])*r
  k%=mod
  r*=10
  r%=mod
  l[k]+=1
ans=0
for i in l:
  ans+=i*(i-1)//2
print(ans)
from functools import lru_cache
import sys

iMaxStackSize = 5000
sys.setrecursionlimit(iMaxStackSize)
n = int(input())
heights = [int(x) for x in input().split()]

@lru_cache(None)
def solve(i):
    if i == n - 1:
        return 0
    if i + 2 >= len(heights):
        return abs(heights[i + 1] - heights[i])
    option1 = abs(heights[i] - heights[i + 1])
    option1 += solve(i + 1)
    option2 = abs(heights[i] - heights[i + 2])
    option2 += solve(i + 2)
    return min(option1, option2)

print(solve(0))


### FIXED CODE ###

from functools import lru_cache
import sys

iMaxStackSize = 5000000
sys.setrecursionlimit(iMaxStackSize)
n = int(input())
heights = [int(x) for x in input().split()]

@lru_cache(None)
def solve(i):
    if i == n - 1:
        return 0
    if i + 2 >= len(heights):
        return abs(heights[i + 1] - heights[i])
    option1 = abs(heights[i] - heights[i + 1])
    option1 += solve(i + 1)
    option2 = abs(heights[i] - heights[i + 2])
    option2 += solve(i + 2)
    return min(option1, option2)

print(solve(0))
h,w = map(int, input().split())
#get hight and weidth 
glid = [0] * ( h+ 2)

h_index = [-1, 0, 0,  1]
w_index = [ 0, -1, 1, 0]



glid[0]=["."] * ( w + 2 )
glid[h + 1 ] = ["."] * ( w + 2 )

for i in range(h):
	temp1 = ["."]
	temp2 = list(input())
	temp1.extend(temp2)
	temp1.append(".")
	glid[ i + 1 ] = temp1

# get glids 

cnt = 0

for j in range(h):
	for k in range(w):
		if glid[ j + 1 ][ k + 1 ] == ".":
			continue
		else:
			flg = False
			for n in range(4):
				if glid[ j  + 1 + h_index[ n ] ][ k + 1 + w_index[ n ]] == "#" :
					flg = True
					break
				cnt += 0
			if flg == False :
				break
	if flg == False :
		break

if cnt < 1:
	print("Yes")
else:
	print("No")


### FIXED CODE ###

h,w = map(int, input().split())
#get hight and weidth 
glid = [0] * ( h+ 2)

h_index = [-1, 0, 0,  1]
w_index = [ 0, -1, 1, 0]



glid[0]=["."] * ( w + 2 )
glid[h + 1 ] = ["."] * ( w + 2 )

for i in range(h):
	temp1 = ["."]
	temp2 = list(input())
	temp1.extend(temp2)
	temp1.append(".")
	glid[ i + 1 ] = temp1

# get glids 

cnt = 0

for j in range(h):
	for k in range(w):
		if glid[ j + 1 ][ k + 1 ] == "#" and glid[ j ][ k + 1 ] == "." and glid[ j + 2 ][ k + 1 ] == "." and glid[ j + 1][ k  ] == "." and glid[ j + 1][ k +2 ] == "." :
			cnt += 1

if cnt > 0 :
	print("No")
else:
	print("Yes")
n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
P=[]
Z=[]
N=[]
for i in range(n):
  if a[i]>0:
    P.append(a[i])
  elif a[i]==0:
    Z.append(a[i])
  else:
    N.append(-a[i])
P.sort()
P3=[1]
for i in range(len(P)):
  P3.append(P3[-1]*P[i]%mod)
P.reverse()
P2=[1]
for i in range(len(P)):
  P2.append(P2[-1]*P[i]%mod)
N.sort()
N3=[1]
for i in range(len(N)):
  N3.append(N3[-1]*N[i]%mod)
N.reverse()
N2=[1]
for i in range(len(N)):
  N2.append(N2[-1]*N[i]%mod)

if len(P)+len(N)<k:
  print(0)
  exit()

if len(N)==0:
  print(P2[k])
  exit()

ans=[]

for i in range(len(N)//2+1):
  if i*2<=k and k-i*2<=len(P):
    ans.append(N2[i*2]*P2[k-i*2]%mod)

if len(ans)!=0:
  print(max(ans))
  exit()

for i in range(k+1):
  if k-i<=len(P):
    ans.append(N3[i]*P3[k-i])

print(-min(ans)%mod)

### FIXED CODE ###

n,k=map(int,input().split())
a=list(map(int,input().split()))
mod=10**9+7
P=[]
Z=[]
N=[]
for i in range(n):
  if a[i]>0:
    P.append(a[i])
  elif a[i]==0:
    Z.append(a[i])
  else:
    N.append(-a[i])
P.sort()
P3=[1]
for i in range(len(P)):
  P3.append(P3[-1]*P[i]%mod)
P.reverse()
P2=[1]
for i in range(len(P)):
  P2.append(P2[-1]*P[i]%mod)
N.sort()
N3=[1]
for i in range(len(N)):
  N3.append(N3[-1]*N[i]%mod)
N.reverse()
N2=[1]
for i in range(len(N)):
  N2.append(N2[-1]*N[i]%mod)

if n==k:
  ans=1
  for i in range(n):
    ans*=a[i]
    ans%=mod
  print(ans%mod)
  exit()

if k==1:
  print(max(a)%mod)
  exit()

if len(P)+len(N)<k:
  print(0)
  exit()

if len(N)==0:
  print(P2[k]%mod)
  exit()

if len(P)+len(N)==k:
  if len(N)%2==0:
    print(P2[-1]*N2[-1]%mod)
    exit()
  else:
    if len(Z)!=0:
      print(0)
    else:
      print(-P2[-1]*N2[-1]%mod)
    exit()

if k%2==0:
  ans=1
  xp=0
  xn=0
  for i in range(k//2):
    if xp+1<len(P):
      xa=P[xp]*P[xp+1]
    else:
      xa=1
    if xn+1<len(N):
      xb=N[xn]*N[xn+1]
    else:
      xb=1
    if xa<=xb:
      xn+=2
      ans*=xb
      ans%=mod
    else:
      xp+=2
      ans*=xa
      ans%=mod
  print(ans%mod)

else:
  ans=1
  xp=0
  xn=0
  ctP=0
  ctN=0
  for i in range(k//2):
    if xp+1<len(P):
      xa=P[xp]*P[xp+1]
    else:
      xa=1
    if xn+1<len(N):
      xb=N[xn]*N[xn+1]
    else:
      xb=1
    if xa<=xb:
      xn+=2
      ans*=xb
      ans%=mod
      ctN+=1
    else:
      xp+=2
      ans*=xa
      ans%=mod
      ctP+=1
  if ctP*2+1<=len(P):
    ans*=P[ctP*2]
    ans%=mod
    print(ans%mod)
  else:
    N.reverse()
    P.reverse()
    ans=1
    xp=0
    xn=0
    ctP=0
    ctN=0
    for i in range(k//2):
      if xp+1<len(P):
        xa=P[xp]*P[xp+1]
      else:
        xa=0
      if xn+1<len(N):
        xb=N[xn]*N[xn+1]
      else:
        xb=0
      if xa<=xb:
        xn+=2
        ans*=xb
        ans%=mod
        ctN+=1
      else:
        xp+=2
        ans*=xa
        ans%=mod
        ctP+=1
    ans*=N[ctN*2]
    ans%=mod
    if len(Z)!=0:
      print(0)
    else:
      print(-ans%mod)
a,b,c,d = map(int,input().split())
print('Yes' if(abs(c-a)<=d or (abs(b-a)<=d and abd(c-b)<=d)) else 'No')

### FIXED CODE ###

a,b,c,d = map(int,input().split())
print('Yes' if(abs(c-a)<=d or (abs(b-a)<=d and abs(c-b)<=d)) else 'No')
W,H,x,y=map(int, input().split())
D = 0.5*H*W
if W//x==2 and H//y==2:
  R = 1
else:
  R = 0
print(D, R)


### FIXED CODE ###

W,H,x,y=map(int, input().split())
D = 0.5*H*W
if W == 2*x and H==2*y:
  R = 1
else:
  R = 0
print(D, R)
n = input()
  n_max = -(10**9)
  n_min = input()

  for i in range(0, n-1):
    R = input()
    if n_max < R - n_min:
      n_max = R - n_min
    if R < n_min
      n_min = R

  print n_max

### FIXED CODE ###

n = int(raw_input())
minv = int(raw_input())
maxv = -1*10**9
  
for j in range(n-1):
  nums = int(raw_input())  
  diff = nums - minv
  if maxv < diff:
    maxv = diff
  if nums < minv:
    minv = nums
  
print maxv
N, Y = int(input().split())
ans = [-1,-1,-1]
for x in range(N+1):
  for y in range(N+1):
    z = N - x - y
    if 10000 * x + 5000 * y + 1000 * z == Y:
      ans[0] = x
      ans[1] = y
      ans[2] = z
print(ans)

### FIXED CODE ###

N, Y = map(int, input().split())
 
ans = [-1,-1,-1]
for x in range(0,N+1):
    for y in range(0,N-x+1):
        z = N - x - y
        if x*10000 + y*5000 + z*1000 == Y:
            ans[0] = x
            ans[1] = y
            ans[2] = z
print(ans[0],ans[1],ans[2])
H,W,A,B=map(int,input().split())
#print(H,W,A,B)

if H==1:
  print("1"*A+"0"*(W-A))
  exit()

if W==1:
  for i in range(H):
    if i<B:
      print("1")
    else:
      print("0")
  exit()
  
if A*H==B*W:
  X="1"*A+"0"*(W-A)
  for i in range(0,H*A,A):
    print(X[i%W:]+X[:i%W])
  exit()

print("No")

### FIXED CODE ###

H,W,A,B=map(int,input().split())
#print(H,W,A,B)

h=[A*H+i*(W-2*A) for i in range(H)]
w=[B*W+i*(H-2*B) for i in range(W)]
#print(h)
#print(w)


for i,hh in enumerate(h):
  if hh in w:
    #print(i,w.index(hh))

    aa=[]
    for a in range(H-i):
      aa.append(W-A)
    for a in range(i):
      aa.append(A)
    #print("aa",aa)    

    bb=[]
    for b in range(W-w.index(hh)):
      bb.append(H-B)
    for b in range(w.index(hh)):
      bb.append(B)
    #print("bb",bb)    
    
    for a in range(H):
      pp=""
      for b in range(W):
        #print(a,b)
        if aa[a]>0 and bb[b]>0:
          pp+="1"
          aa[a]-=1
          bb[b]-=1
        else:
          pp+="0"
      print(pp)
    exit()

print("No")
import heapq as hp
n = int(input())
a = list(map(int, input().split()))
hp.heapify(a)
ans = 0
while len(a) > 0:
    b = hp[0]
    if b in a:
         ans += -1
    a = [i for i in a if i % b != 0]
    ans += 1
print(ans)


### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
b = max(a)
che = [1 for i in range(b)]
for i in a:
    if che[i-1] == 1:
        c = b // i
        for j in range(2,c+1):
            che[i*j-1] = 0
        che[i-1] = 2
    elif che[i-1] == 2:
        che[i-1] = 0
ans = 0
for i in a:
    if che[i-1] == 2:
        ans += 1
print(ans)
S = input()

if S == 'zyxwvutsrqponmlkjihgfedcba':
    print(-1)
    exit()

tmp = {a: 0 for a in 'abcdefghijklmnopqrstuvwxyz'}

for x in S:
    tmp[x] += 1

tmp2 = []
if all(x == 1 for x in tmp.values()):
    for i in range(len(S)-1, 0, -1):
        if S[i-1] < S[i]:
            print(S[:i-1] + min(tmp2))
            exit()
        tmp2.append(S[i])
else:
    for k, v in tmp.items():
        if v == 0:
            tmp2.append(k)
    print(S+min(tmp2))

### FIXED CODE ###

S = input()

if S == 'zyxwvutsrqponmlkjihgfedcba':
    print(-1)
    exit()

tmp = {a: 0 for a in 'abcdefghijklmnopqrstuvwxyz'}

for x in S:
    tmp[x] += 1

tmp2 = []
if all(x == 1 for x in tmp.values()):
    for i in range(len(S)-1, 0, -1):
        tmp2.append(S[i])
        if S[i-1] < S[i]:
            tmp2 = [x for x in tmp2 if x > S[i-1]]
            print(S[:i-1]+min(tmp2))
            exit()
else:
    for k, v in tmp.items():
        if v == 0:
            tmp2.append(k)
    print(S+min(tmp2))
N=int(input())
A=list(map(int,input().split()))
L=sorted(A,reverse=True)
if L[0]<sum(L[1,]):
  print("Yes")
else:
  print("No")

### FIXED CODE ###

N=int(input())
A=list(map(int,input().split()))
L=sorted(A,reverse=True)
if L[0]<sum(L[1:]):
  print("Yes")
else:
  print("No")
n,m = map(int,input().split())
if n%2 ==1:
    for i in range(1,m+1):
        print(i,n-i)
else:
    last = 0
    li = [j for j in range(1,n+1)]
    #print(li)
    for i in range(1,m+1):
        a = min(li)
        b = min(li)+i
        print(a,b)
        li.remove(a)
        li.remove(b)

### FIXED CODE ###

n,m = map(int,input().split())
if n%2 ==1:
    for i in range(1,m+1):
        print(i,n-i)
else:
    left_end = 1+m if m%2 == 1 else m
    left_start = left_end//2
    right_start = left_end+m//2
    for i in range(1,m+1):
        if i%2 == 1:
            print(left_start,left_start+i)
            left_start-=1
        else:
            print(right_start,right_start+i)
            right_start-=1
#!/usr/bin/env python3

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

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

    def add(self, i, x):
        while i < self.size:
            self.tree[i] += x
            i |= i + 1

a = ord('a')

def make_index(s):

    index = [[] for _ in range(26)]
    for i, ch in enumerate(s):
        index[ord(ch) - a].append(i)

    return index

def solve(s):

    n = len(s)
    index = make_index(s)

    odd = None
    for code, char_pos in enumerate(index):
        if len(char_pos) % 2 == 1:
            if odd is not None:
                return -1
            odd = code

    if odd is not None:
        if index[odd][len(index[odd]) // 2] < n // 2:
            s = s.reverse()
            index = make_index(s)

    bit = Bit(n)

    ans = 0
    cnt = 0
    for i in range(n):
        if bit.sum(i + 1) - bit.sum(i) == 1:
            continue
        cnt += 1
        code = ord(s[i]) - a
        j = index[code].pop()
        ans += n - cnt - (j - bit.sum(j))
        bit.add(j, 1)
        if (n - 1) // 2 <= cnt:
            break

    return ans


def main():
    s = input()

    print(solve(s))


if __name__ == '__main__':
    main()



### FIXED CODE ###

#!/usr/bin/env python3

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

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

    def add(self, i, x):
        while i < self.size:
            self.tree[i] += x
            i |= i + 1

a = ord('a')

def make_index(s):

    index = [[] for _ in range(26)]
    for i, ch in enumerate(s):
        index[ord(ch) - a].append(i)

    return index

def solve(s):

    n = len(s)
    index = make_index(s)

    odd = None
    for code, char_pos in enumerate(index):
        if len(char_pos) % 2 == 1:
            if odd is not None:
                return -1
            odd = code

    bit = Bit(n)

    ans = 0
    cnt = 0
    for i in range(n):
        if bit.sum(i + 1) - bit.sum(i) == 1:
            continue
        code = ord(s[i]) - a
        if code == odd and index[code][-1] == i:
            continue
        cnt += 1
        j = index[code].pop()
        ans += n - cnt - (j - bit.sum(j))
        bit.add(j, 1)
        if n // 2 <= cnt:
            break

    if odd is not None:
        j = index[odd][-1]
        ans += abs(n // 2 - (j - bit.sum(j)))

    return ans


def main():
    s = input()

    print(solve(s))


if __name__ == '__main__':
    main()
n,k=map(int,input().split())
ls=list(map(int,input().split()))
ps=[]
length=0
goto=1
while True:
    idx=goto-1
    goto=ls[idx]
    if goto==-1:
        break
    ps.append(goto)
    ls[idx]=-1
    length+=1

amari=(k-1)%3
print(ps[amari])

### FIXED CODE ###

n,k=map(int,input().split())
ls=list(map(int,input().split()))
check_ls=[0 for i in range(n)]
ps=[1]
nxt=1
while True:
    idx=nxt-1
    if check_ls[idx]==-1:
        break
    ps.append(ls[idx])
    nxt=ls[idx]
    check_ls[idx]=-1

loop_start_idx = ps.index(ps[-1])
loop_length=len(ps)-loop_start_idx-1
loop_ls=ps[loop_start_idx:-1]
if k<len(ps):
    print(ps[k])
else:
    idx=(k-loop_start_idx)%loop_length
    print(loop_ls[idx])
class Bit:
    def __init__(self, n):
        self.size = n
        self.tree = [0]*-~n

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

    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()))

bit = Bit(n)
cnt = 0
for i, t in enumerate(a):
    bit.add(t, 1)
    cnt += i+1-bit.sum(t)
    cnt = cnt % (10 ** 9 + 7)


print(cnt * sum(range(1, k+1)) % (10 ** 9 + 7))


### FIXED CODE ###

MOD = 10**9+7
n, k = map(int, input().split())
a = list(map(int, input().split()))

cnt1 = 0
for i in range(len(a)-1):
    for j in range(i, len(a)):
        if a[i] > a[j]:
            cnt1 += 1

a2 = a * 2
cnt2 = 0
for i in range(len(a)):
    for j in range(len(a), len(a2)):
        if a2[i] > a2[j]:
            cnt2 += 1

print((cnt1 * k + cnt2 * k * (k-1) // 2) % MOD)