Harryxun/stf_run huggingface dataset:
def main():
    n = int(input())
    S = [input() for _ in [0]*n]
    s2 = []
    s3 = []
    for s in S:
        temp = [0, 0]
        m = 0
        now = 0
        for i in s:
            if i == "(":
                now += 1
            else:
                now -= 1
            m = min(m, now)
        temp[0] = m
        temp[1] = (s.count("(")-s.count(")"))
        if temp[1] >= 0:
            s2.append(temp)
        else:
            s3.append(temp)
    s2.sort(key=lambda x: (-x[0]))
    s3.sort(key=lambda x: (x[1]))
    cnt = 0
    # print(s2)
    # print(s3)
    for i, j in s2:
        if cnt+i < 0:
            print("No")
            return
        cnt += j
    for i, j in s3:
        if cnt+i < 0:
            print("No")
            return
        cnt += j
    if cnt != 0:
        print("No")
        return
    print("Yes")


main()

### FIXED CODE ###

def main():
    mod = 998244353
    fact = [1, 1]
    for i in range(2, 400001):
        fact.append(fact[-1]*i % mod)

    def nCr(n, r):
        return pow(fact[n-r]*fact[r] % mod, mod-2, mod)*fact[n] % mod

    n, m, k = map(int, input().split())
    ans = 0
    for i in range(k+1):
        ans = (ans+m*pow(m-1, n-i-1, mod)*nCr(n-1, n-i-1)) % mod

    print(ans)


main()
a,b=map(int,input().split())
if a>9:
  print(b)
else:
  print(b+(100＊(10-a)))

### FIXED CODE ###

a,b=map(int,input().split())
if a>9:
  print(b)
else:
  print(b+(100*(10-a)))
n = int(input())
a = list(map(int, input().split()))
ans = 0
for i in range(1, n):
  if a[-i]>a[-i-1]: break
print(i-1)

### FIXED CODE ###

n = int(input())
a = list(map(int, input().split()))
ans = 0
cnt = 0
for i in range(n-1):
  if a[i] >= a[i+1]: cnt += 1
  else:
    ans = max(ans, cnt)
    cnt = 0
print(max(cnt, ans))
n = int(raw_input())
p = [0 for i in xrange(1, 101)]
m = [0 for i in xrange(1, 101)] for j in range(1, 101)

for i in xrange(1, n+1):
    p[n-1],p[n] = map(int, raw_input.split())

for k in xrange(2, n+1):
    for i in range(1, n-k+2):
       j = i+k-1
       m[i][j] = float("inf")
       for l in range(i,j):
          m[i][j] =  min(m[i][j], m[i][l]+m[l+1][j]+p[i-1]*p[l]*p[j])

print m[1][n]

### FIXED CODE ###

n = int(raw_input())
p = [0 for i in range(0, 101)]
m = [[0 for i in range(0, 101)] for j in range(0, 101)]

for i in range(1, n+1):
   p[i-1], p[i] = map(int, raw_input().split())
     
for k in range(2, n+1):
   for i in range(1, n-k+2):
      j = i+k-1
      m[i][j] = float("inf")
      for l in range(i, j):
         m[i][j] = min(m[i][j], m[i][l] + m[l+1][j] + p[i-1]*p[l]*p[j])
 
print m[1][n]
input()
a = [*map(int, input().split())]
ans = 10 ** 18
for val in range(-200, 200):
  curr = 0
  for it in a:
    curr += (it - val) ** 2
  ans = min(ans, curr)
print(ans)

### FIXED CODE ###

_ = input()
a = list(map(int, input().split()))
ans = 10 ** 18
for val in range(-200, 200):
    curr = 0
    for it in a:
        curr += (it - val) ** 2
    ans = min(ans, curr)
print(ans)
N = int(input())

print(int((N * (N - 1)) / 2))


### FIXED CODE ###

S = input()
T = input()


cnt = 0
for i in range(3):
    if S[i] == T[i]:
        cnt += 1

print(cnt)
for i in [map(int, input().split())]:
  print("Even" if i[0]*i[1]%2==0 else "Odd")

### FIXED CODE ###

a,b = map(int, input().split())
if a%2!=0 and b%2!=0:
  print("Odd")
else:
  print("Even")
n,a=map(int,input().split())
print(n**2-a)

### FIXED CODE ###

print(int(input())**2-int(input()))
from collections import deque
    INF = float("inf")
     
    h, w = map(int, input().split())
    ch, cw = map(int, input().split())
    dh, dw = map(int, input().split())
    ch, cw = ch-1, cw-1
    dh, dw = dh-1, dw-1
    S = [input() for _ in range(h)]
     
    dist = [[INF] * w for _ in range(h)]
    dist[ch][cw] = 0
    q = deque([(cw, ch)])
     
    while q:
        x, y = q.popleft()
        for _x in range(-2, 3):
            for _y in range(-2, 3):
                if _x == _y == 0:
                    continue
                next_x, next_y = x + _x, y + _y
                if not 0 <= next_x < w:
                    continue
                if not 0 <= next_y < h:
                    continue
                if S[next_y][next_x] == "#":
                    continue
                if abs(_x) + abs(_y) <= 1:
                    if dist[next_y][next_x] <= dist[y][x]:
                        continue
                    q.appendleft((next_x, next_y))
                    dist[next_y][next_x] = dist[y][x]
                else:
                    if dist[next_y][next_x] <= dist[y][x] + 1:
                        continue
                    q.append((next_x, next_y))
                    dist[next_y][next_x] = dist[y][x] + 1
     
    if dist[dh][dw] != INF:
        print(dist[dh][dw])
    else:
        print(-1)

### FIXED CODE ###

from collections import deque
INF = float("inf")

h, w = map(int, input().split())
ch, cw = map(int, input().split())
dh, dw = map(int, input().split())
ch, cw = ch-1, cw-1
dh, dw = dh-1, dw-1
S = [input() for _ in range(h)]

dist = [[INF] * w for _ in range(h)]
dist[ch][cw] = 0
q = deque([(cw, ch)])

while q:
    x, y = q.popleft()
    for _x in range(-2, 3):
        for _y in range(-2, 3):
            if _x == _y == 0:
                continue
            next_x, next_y = x + _x, y + _y
            if not 0 <= next_x < w:
                continue
            if not 0 <= next_y < h:
                continue
            if S[next_y][next_x] == "#":
                continue
            if abs(_x) + abs(_y) <= 1:
                if dist[next_y][next_x] <= dist[y][x]:
                    continue
                q.appendleft((next_x, next_y))
                dist[next_y][next_x] = dist[y][x]
            else:
                if dist[next_y][next_x] <= dist[y][x] + 1:
                    continue
                q.append((next_x, next_y))
                dist[next_y][next_x] = dist[y][x] + 1

if dist[dh][dw] != INF:
    print(dist[dh][dw])
else:
    print(-1)
if a=='H':
	print(b)
else:
	if b=='H':
		print('D')
	else:
		print('H')

### FIXED CODE ###

a, b = input().split()

if a=='H':
	print(b)
else:
	if b=='H':
		print('D')
	else:
		print('H')
import sys
def 解():
    input = sys.stdin.readline
    H,W,N = [int(_) for _ in input().split()]
    dT={}
    if 0 < N  :
        for  _ in range(N):
            x,y = [int(_) - 1 for _ in input().split()]
            if x >= y:
                系列 = x-y
                if 系列 in dT:
                    if x + y < dT[系列][2] :
                        dT[系列] = (x,y,x+y)
                else:
                    dT[系列] = (x,y,x+y)
        aB = sorted(dT.items())
        iL = len(aB)
        if iL == 1:
            高橋,青木,距離 = aB[0][1]
        else:
            #入力例2
            #[(0, (1, 1, 2)), (1, (3, 2, 5)), (2, (5, 3, 8)), (4, (6, 2, 8)), (7, (7, 0, 7))]
            aG= [aB[0][1]]
            for i in range(1,iL):
                if aB[i][0]-1 == aB[i-1][0]:
                    if aB[i][1][2] < aB[i-1][1][2] :
                        aG.append(aB[i][1])
                else:
                    aG.append(aB[i][1])
            if aG[0][0] - aG[0][1] == 0:
                del aG[0]
            if 0 < len(aG) :
                高橋,青木,距離 = sorted(aG,key=lambda x:x[0])[0]
            else:
                print(H)
                exit()
        print(高橋)
    else:
        print(H)
解()


### FIXED CODE ###

import sys
def 解():
    input = sys.stdin.readline
    H,W,N = [int(_) for _ in input().split()]
    dT={}
    高橋 = H
    if 0 < N  :
        for  _ in range(N):
            x,y = [int(_) - 1 for _ in input().split()]
            if x >= y:
                系列 = x-y
                if 系列 in dT:
                    if x + y < dT[系列][2] :
                        dT[系列] = (x,y,x+y)
                else:
                    dT[系列] = (x,y,x+y)
        aB = sorted(dT.items())
        iL = len(aB)
        if iL == 1:
            高橋,青木,距離 = aB[0][1]
        else:
            #入力例2
            #[(0, (1, 1, 2)), (1, (3, 2, 5)), (2, (5, 3, 8)), (4, (6, 2, 8)), (7, (7, 0, 7))]
            if 0 < len(aB) :
                aG= [aB[0][1]]
                for i in range(1,iL):
                    if aB[i][0]-1 == aB[i-1][0]:
                        if aB[i][1][2] < aB[i-1][1][2] :
                            aG.append(aB[i][1])
                    else:
                        aG.append(aB[i][1])
                if 0 < len(aG) and  aG[0][0] - aG[0][1] == 0 :
                    del aG[0]
                if 0 < len(aG) :
                    高橋,青木,距離 = sorted(aG,key=lambda x:x[0])[0]
    print(高橋)
解()
a,b,c=map(int, input().split())
if int(sqrt(a))+int(sqrt(b)) < int(sqrt(c)):
    print("Yes")
else:
    print("No")



### FIXED CODE ###

from math import sqrt
from decimal import *

a,b,c=map(int, input().split())
if Decimal(a).sqrt()+Decimal(b).sqrt() < Decimal(c).sqrt():
    print("Yes")
else:
    print("No")
S = int(input())
h = S//3600
m = S%3600//60
s = S%60
time="h,m,s"
print(time.split(`:`))


### FIXED CODE ###

S = int(input())
h = S//3600
m = S%3600//60
s = S%60
print(f"{h}:{m}:{s}")
s = int(input())
def functionF(n):
    result = n/2 if n % 2 == 0 else 3 * n + 1
    return int(result)
def calc(s):
  array = []
  for i in range(1,1000000):
    if i == 1:
      array.append(s)
      elif i > 1:
        array.append(functionF(array[i - 2]))
        return array
def result(s):
    result = calc(s)
    for i in range(1, 1000000):
#         print('i',i)
        for k in range(i):
#             print('k',k)
#             print(result[i], result[k])
            if result[i] == result[k]:
                print(i - 1)
                return

### FIXED CODE ###

s = int(input())
def functionF(n):
    result = n/2 if n % 2 == 0 else 3 * n + 1
    return int(result)

def calc(s):
    array = []
    for i in range(1,1000000):
        if i == 1:
            array.append(s)
        elif i > 1:
            array.append(functionF(array[i - 2]))
            for k in range(1, i):
#                 print(i, k)
#                 print(array[i-1], array[k-1])
                if array[i-1] == array[k-1]:
                    print(i)
                    return
calc(s)
A = int(input())
B = int(input())
if A <9 and B < 9:
    print('Yay!')
else:
    print(':(')

### FIXED CODE ###

A, B = map(int, input().split())
if A <= 8 and B <= 8:
    print('Yay!')
else:
    print(':(')
#handshake
from scipy.fft import rfft, irfft
import numpy as np
N, M = map(int, input().split())
A = np.array(input().split(), dtype=np.int32)

x = np.bincount(A)
fft_size = 1 << (2 * x.size + 10).bit_length()

fx = rfft(x, fft_size)
conv = irfft(fx * fx, fft_size)
conv = (conv + 0.5).astype(int)

tmp = np.arange(conv.size, dtype=int)
happy = tmp[np.nonzero(conv)].tolist()
cnt = conv[np.nonzero(conv)].tolist()


ans = 0
while M > 0:
    h = happy.pop()
    num = cnt.pop()
    num = min(M, num)

    M -= num
    ans += num * h

print(ans)


### FIXED CODE ###

import bisect

N, M = map(int, input().split())
A = list(map(int, input().split()))
A.sort()
B = [0] * N
B[-1] = A[-1]
for i in range(N - 2, -1, -1):
    B[i] = B[i+1]+A[i]


def C(mid):
    tmp = 0
    for a in A:
        pos = bisect.bisect_right(A, mid - a)
        tmp += N-pos
    return tmp > M


lb = 0
rb = 10**6
while rb - lb > 1:
    happy = (lb + rb) // 2
    if C(happy):
        lb = happy
    else:
        rb = happy

ans = 0
cnt = 0
for a in A:
    pos = bisect.bisect_right(A, rb - a)
    if pos == N:
        continue
    ans += B[pos]+(N-pos)*a
    cnt += N - pos
ans += (M-cnt)*rb
print(ans)
#!/usr/bin/python3
# -*- coding:utf-8 -*-

import numpy

MAX = 10 ** 9 + 7

def prod_mod(la, mod):
  x = 1
  for a in la:
    x *= a
    x %= mod
  return x

def main():
  n, k = map(int, input().strip().split())
  la = numpy.array(list(map(int, input().strip().split())))
  la = la[numpy.argsort(numpy.abs(la))][::-1]
  if n == k:
    print(prod_mod(la, MAX))
  else:
    if k % 2 == 1 and (la >= 0).sum() == 0:
      print(prod_mod(la[-k:], MAX))
    else:
      lal, lar = la[:k], la[k:]
      lal.sort()
      nlm = (lal < 0).sum()
      if nlm % 2 == 0:
        print(prod_mod(lal, MAX))
      else:
        mpr = numpy.max(lar)
        mmr = numpy.min(lar)
        if mpr > 0 and mmr < 0:
          if abs(mpr * lal[nlm]) > abs(mmr * lal[nlm-1]):
            lal[nlm-1] = mpr
          else:
            lal[nlm] = mmr
        elif mpr > 0:
          lal[nlm-1] = mpr
        elif mmr < 0:
          lal[nlm] = mmr
        print(prod_mod(lal, MAX))

if __name__=='__main__':
  main()



### FIXED CODE ###

#!/usr/bin/python3
# -*- coding:utf-8 -*-

import numpy

MAX = 10 ** 9 + 7

def prod_mod(la, mod):
  x = 1
  for a in la:
    x *= a
    x %= mod
  return x

def main():
  n, k = map(int, input().strip().split())
  la = numpy.array(list(map(int, input().strip().split())))
  la.sort()
  if n == k:
    print(prod_mod(la, MAX))
  else:
    if k % 2 == 1 and (la >= 0).sum() == 0:
      print(prod_mod(la[-k:], MAX))
    else:
      il, ir = 0, n-1
      cnt = 0
      l = []
      if k % 2 == 1:
        l.append(la[ir])
        ir -= 1
        cnt += 1
      while k - (cnt + 2) >= 0:
        if la[il] * la[il+1] > la[ir-1] * la[ir]:
          l.extend([la[il], la[il+1]])
          il += 2
        else:
          l.extend([la[ir-1], la[ir]])
          ir -= 2
        cnt += 2
      print(prod_mod(l, MAX))
      

if __name__=='__main__':
  main()
import bisect
from collections import Counter, deque
from fractions import gcd
from functools import lru_cache
from functools import reduce
import functools
import heapq
import itertools
import math
import numpy as np
import re
import sys

sys.setrecursionlimit(10000)
INF = float('inf')

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))
P.insert(0, -1)

ans = 0
for i in range(len(P)):
    if i == P[i]:
        if i + 1 < len(P):
            P[i], P[i + 1] = P[i + 1], P[i]
        ans += 1
print(ans)


### FIXED CODE ###

import sys

sys.setrecursionlimit(10000)
INF = float('inf')

N = int(sys.stdin.readline())
P = list(map(int, sys.stdin.readline().split()))
P.insert(0, -1)

ans = 0
for i in range(len(P)):
    if i == P[i]:
        if i + 1 < len(P):
            P[i], P[i + 1] = P[i + 1], P[i]
        ans += 1
print(ans)
import math

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

print(int(A * B / math.gcd(A, B)))

### FIXED CODE ###

import fractions
A, B = map(int, input().split())
print(int(A * B / fractions.gcd(A, B)))
n = int(input())
# 隣接リスト
link = [[] for i in range(n)]
for i in range(n-1):
    u, v, w = map(int, input().split())
    u -= 1
    v -= 1
    w %= 2
    link[u].append((v,w))
    link[v].append((u,w))

ans = [0]*n
visited = [False for i in range(n)]

def dfs(now, prev):

    for next,w in link[now]:
        if next != prev:
            if visited[next]:
                continue
            else:
                visited[next] = True
                ans[next] = ans[now] + w
                dfs(next, now)
dfs(0,-1)
for i in ans:
    print(i)

### FIXED CODE ###

import sys
sys.setrecursionlimit(10**7)

n = int(input())
# 隣接リスト
link = [[] for i in range(n)]
for i in range(n-1):
    u, v, w = map(int, input().split())
    u -= 1
    v -= 1
    link[u].append((v,w))
    link[v].append((u,w))

ans = [-1]*n

def dfs(v, now):
    ans[v] = now

    for next_v ,w in link[v]:
        if ans[next_v] != -1:
            continue
        if w % 2:
            dfs(next_v, 1-now)
        else:
            dfs(next_v, now)

dfs(0,0)
for i in ans:
    print(i)
n, b_n, r_n = input().split()
b= "b" * int(b_n)
r = "r" * int(r_n)

total = (b + r) * int(n)
total = total[:int(n)]

b_n2 = 0
for _ in total:
  if _ == "b":
    b_n2 += 1
  
print(str(b_n2))

### FIXED CODE ###

total = input()
a = total[0]
b = total[1]
c = total[2]
if a != b:
  print("Yes")
elif b != c:
  print("Yes")
else:
  print("No")
def MAP(): return map(int,input().split())
import math

n = int(input())
*a, = MAP()

mx = max(a)
a = sorted(a,key=lambda x:math.gcd(mx,x))
print(math.gcd(a[1],mx))

### FIXED CODE ###

def MAP(): return map(int,input().split())
def gcd(a, b):
    while b:
        a %= b
        a, b = b, a
    return a

n = int(input())
*a, = MAP()

x=[0 for _ in range(n)]
y=[0 for _ in range(n)]
for i in range(1,n):
    x[i]=gcd(x[i-1],a[i-1])
for i in range(n-1)[::-1]:
    y[i]=gcd(y[i+1],a[i+1])
Z=[gcd(x[i],y[i]) for i in range(n)]
print(max(Z))
admission = []
n = int(input())
admission.append(map(int,input().split()))

for i in range(n):
    if admission[n-1] % 2 == 0:
        if admission[n-1] % 3 == 0 or admission[n-1] % 5 == 0:
            print("APPROVED")
        else:
            print("DENIED")


### FIXED CODE ###

n = int(input())
a = map(int,input().split())
for l in a:
    if l % 2 ==0:
        if l % 3 == 0 or l % 5 == 0:
            continue
        else:
            print("DENIED")
            quit()
print("APPROVED")
from fractions import gcd


def lcm(a, b):
    return int(a * b / gcd(a, b))


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

cumlcm = A[0]
for a in A[1:]:
    cumlcm = lcm(cumlcm, a)
m = cumlcm - 1
f = sum(map(lambda a: m % a, A))
print(f)


### FIXED CODE ###

from fractions import gcd


def lcm(a, b):
    return a * b // gcd(a, b)


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

cumlcm = A[0]
for a in A[1:]:
    cumlcm = lcm(cumlcm, a)
m = cumlcm - 1
f = sum(map(lambda a: m % a, A))
print(f)
N,Q  = map(int, input().split())

G = [[] for i in range(N)]
for i in range(N-1):
    u,v = map(int,input().split())
    G[u-1].append((v-1))
    G[v-1].append((u-1))

## クエリを覚えておく
scores = [0]*N
for i in range(Q):
    p,x = map(int, input().split())
    scores[p-1] += x 

ans = [0]*N
ans[0] = scores[0]

used = [False] * N
def dfs(G, v):
   # vを訪問済みにする
   used[v] = True
   #グラフ中の次のVについて
   for next_v in G[v]:
       # すでに見られていたら無視
       if used[next_v]: continue
       # 見られていない場合、再帰的に探索
       # 親のスコアも足していく
       ans[next_v] = ans[v] + scores[next_v]
       dfs(G, next_v)

dfs(G,0)
print(*ans)


### FIXED CODE ###


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

# 木
G = [[] for i in range(N)]
for i in range(N-1):
    u,v = map(int,input().split())
    G[u-1].append((v-1))
    G[v-1].append((u-1))

## クエリを覚えておく
scores = [0]*N
for i in range(Q):
    p,x = map(int, input().split())
    scores[p-1] += x 

# 和をとっていく
ans = [0]*N
ans[0] = scores[0]
used = [False] * N

"""
dfs TLEする。なんで
"""
# import sys
# sys.setrecursionlimit(100000)
# def dfs(G, v):
#    # vを訪問済みにする
#    used[v] = True
#    #グラフ中の次のVについて
#    for next_v in G[v]:
#        if used[next_v]: continue
#        ans[next_v] = ans[v] + scores[next_v]
#        dfs(G, next_v)
# dfs(G,0)
# print(*ans)

# 木をBFSをする
from collections import deque
used = [False] * N
used[0] = True # 始めどこから行くか
q = deque([0])
while len(q) > 0:
    v = q.popleft()
    Vs = G[v]
    for next_v in Vs: 
        if not used[next_v]:
            q.append(next_v)
            ans[next_v] = ans[v] + scores[next_v]
            used[next_v] = True
print(*ans)
# https://atcoder.jp/contests/abc088/tasks/abc088_d

H, W = map(int, input().split())
s = [input() for _ in range(H)]
d = [[-1] * W for _ in range(W)]

# 0,0 to h-1, w-1
d[0][0] = 0

queue = []
queue.append([0, 0])
#
# while len(queue) > 0:
#     p = queue.pop(0)
#     y, x = p[0], p[1]
#
#     dx4 = [0, 0, 1, -1]
#     dy4 = [1, -1, 0, 0]
#
#     for dx, dy in zip(dx4, dy4):
#         next_y = y + dy
#         next_x = x + dx
#         if 0 <= next_y < H and 0 <= next_x < W and s[next_y][next_x] != "#" and d[next_y][next_x] == -1:
#             d[next_y][next_x] = d[y][x] + 1
#             queue.append([next_y, next_x])

count = 0
for l in s:
    for c in l:
        if c == ".":
            count += 1

if d[H-1][W-1] == -1:
    print(-1)
else:
    print(count - d[H-1][W-1] - 1)

# [print(l) for l in s]
# [print(l) for l in d]


### FIXED CODE ###

from queue import Queue

inf = 10 ** 20

def bfs(H, W, s):
    d = [[inf for i in range(W)] for j in range(H)]
    q = Queue()

    d[0][0] = 1
    q.put([0, 0])

    dx = (0, -1, 1, 0)
    dy = (-1, 0, 0, 1)

    while not q.empty():
        p = q.get()
        x = p[0]
        y = p[1]
        for i in range(4):
            nx = x + dx[i]
            ny = y + dy[i]
            if(nx >= 0 and nx < H and ny >= 0 and ny < W):
                if(s[nx][ny] == '.' and d[x][y] + 1 < d[nx][ny]):
                    d[nx][ny] = d[x][y] + 1
                    q.put([nx, ny])

    return d[H-1][W-1]

H, W = map(int, input().split())
s = []
wnum = 0
for i in range(H):
    s.append(input())
    for j in range(W):
        if(s[i][j] == "."):
            wnum += 1
d = bfs(H, W, s)
if(d == inf):
    print("-1")
else:
    print(wnum - d)
from collections import deque

n, m = list(map(int, input().split()))
li = []
for _ in range(m):
    li.append(list(map(int, input().split())))

# construct indirectional graphs
edges = [[] for _ in range(n)]
for i, j in li:
    i -= 1
    j -= 1
    edges[i].append(j)
    edges[j].append(i)

edges2 = None

S = deque()
S.append([0])
while len(S) > 0:
    path = S.pop()
    # if full path,
    if len(path) == n:
        # used path set
        used = set()
        for i, j in zip(path[:-1], path[1:]):
            used |= {(i, j)}
        # delete unused edges
        if edges2 == None:
            edges2 = used
        else:
            edges2 = edges2 & used
        continue
    for v in edges[path[-1]]:
        if v not in path:
            S.append(path + [v])

ans = len(edges2)

print(ans)

### FIXED CODE ###

from collections import deque

n, m = list(map(int, input().split()))
li = []
for _ in range(m):
    li.append(list(map(int, input().split())))

ans = 0
for k in range(len(li)):
    li0 = li[:k] + li[k + 1:]
    # construct indirectional graphs
    edges = [[] for _ in range(n)]
    for i, j in li0:
        i -= 1
        j -= 1
        edges[i].append(j)
        edges[j].append(i)
    # check bridge
    S = deque()
    S.append(0)
    visited = set()
    while len(S) > 0:
        u = S.pop()
        visited.add(u)
        for v in edges[u]:
            if v not in visited:
                S.append(v)
    if len(visited) < n:
        ans += 1


print(ans)
S = int(input())

if S == 'ABC':
    print('ARC')
else:
    print('ABC')



### FIXED CODE ###

S = input()

if S == 'ABC':
    print('ARC')
else:
    print('ABC')
S = int(input())
h = S // 3600
m = (S - h*3600)//60
s = S - h*3600 - m*60

print(h+':'+m+':'+s)


### FIXED CODE ###

S = int(input())
h = S // 3600
m = (S - h*3600)//60
s = S - h*3600 - m*60

print(str(h)+':'+str(m)+':'+str(s))
n,k=map(int,input().split())
c=[[1 for _ in range(n)] for _ in range(n)]
mod=10**9+7
for i in range(1,n):
  for j in range(1,i):
    c[i][j]=c[i-1][j]+c[i-1][j-1]
for i in range(1,k+1):
  print(c[n-k+1][i]*c[k-1][i-1]%mod)

### FIXED CODE ###

n,k=map(int,input().split())
c=[[0]*(n+1) for _ in range(n+1)]
for i in range(n+1):
  c[i][0]=1
mod=10**9+7
for i in range(1,n+1):
  for j in range(1,i+1):
    c[i][j]=c[i-1][j]+c[i-1][j-1]
for i in range(1,k+1):
  print(c[n-k+1][i]*c[k-1][i-1]%mod)
n,k=map(int,input().split())
a=list(map(lambda x:int(x)-1,input().split()))
lst=[0]
now=0
memo=0
town=[0]*n
town[0]=1
b=0 
for i in range(k):
  now=a[now]
  if town[now]==1:
    memo=now 
    b=1
    break
  lst.append(now)
  town[now]=1
if b==1:
  i=lst.index(now)　
  l=len(lst)
  if memo!=0:
    lst=lst[i:]
    l-=len(lst)
    print(lst[(k-l)%len(lst)]+1)
  else:
    print(lst[k%l]+1)
else:
  print(now)


### FIXED CODE ###

n,k=map(int,input().split())
a=list(map(lambda x:int(x)-1,input().split()))
lst=[0]
now=0
memo=0
town=[0]*n
town[0]=1
b=0
for i in range(k):
	now=a[now]
	if town[now]==1:
		memo=now
		b=1
		break
	lst.append(now)
	town[now]=1
if b==1:
	i=lst.index(memo)
	l=len(lst)
	if memo!=0:
		lst=lst[i:]
		l-=len(lst)
		print(lst[(k-l)%len(lst)]+1)
	else:
		print(lst[k%l]+1)
else:
	print(now+1)
r=float(input())
p=3.14159265
print(p*r*r 2*p*r)


### FIXED CODE ###

from math import pi
r = float(input())
a = pi*r*r
b = 2*pi*r
print(a,b)