Harryxun/stf_run huggingface dataset:
# -*- coding: utf-8 -*-

def mergef(a,b):
    c = []
    h = j = 0
    while j<len(a) and h<len(b):
        if a[j]>b[h]:
            c.append(a[j])
            j+=1
        else:
            c.append(b[h])
            h+=1
    if j==len(a):
        for i in b[h:]:
            c.append(i)
    else:
        for i in a[j:]:
            c.append(i)
    return c

def merge_sortf(lists):
    if len(lists) <= 1:
        return lists
    middle = int(len(lists)/2)
    left = merge_sortf(lists[:middle])
    right = merge_sortf(lists[middle:])
    return mergef(left,right)


X,Y,A,B,C= map(int,input().split())
p = list(map(int,input().split()))
q = list(map(int,input().split()))
r = list(map(int,input().split()))

pm=merge_sortf(p)
qm=merge_sortf(q)
rm=merge_sortf(r)

k=0;i=X-1;j=Y-1
while i>=0 and j>=0 and k<C:
    if min((pm[i]-rm[k]),(qm[j]-rm[k])) < 0 :
        if pm[i]>=qm[j] :
            qm[j]=rm[k]
            j=j-1
        elif pm[i]<qm[j]:
            pm[i]=rm[k]
            i=i-1
        else:

    elif min((pm[i]-rm[k]),(qm[j]-rm[k])) > 0:
        break
    k=k+1

ans=sum(pm[:X])+sum(qm[:Y])
print(ans)


### FIXED CODE ###

# -*- coding: utf-8 -*-

def mergef(a,b):
    c = []
    h = j = 0
    while j<len(a) and h<len(b):
        if a[j]>b[h]:
            c.append(a[j])
            j+=1
        else:
            c.append(b[h])
            h+=1
    if j==len(a):
        for i in b[h:]:
            c.append(i)
    else:
        for i in a[j:]:
            c.append(i)
    return c

def merge_sortf(lists):
    if len(lists) <= 1:
        return lists
    middle = int(len(lists)/2)
    left = merge_sortf(lists[:middle])
    right = merge_sortf(lists[middle:])
    return mergef(left,right)


X,Y,A,B,C= map(int,input().split())
p = list(map(int,input().split()))
q = list(map(int,input().split()))
r = list(map(int,input().split()))

pm=merge_sortf(p)
qm=merge_sortf(q)
rm=merge_sortf(r)

k=0;i=X-1;j=Y-1
while i>=0 and j>=0 and k<C:
    if min((pm[i]-rm[k]),(qm[j]-rm[k])) < 0 :
        if pm[i]>=qm[j] :
            qm[j]=rm[k]
            if j>0:
                j=j-1
        elif pm[i]<qm[j]:
            pm[i]=rm[k]
            if i>0:
                i=i-1
    elif min((pm[i]-rm[k]),(qm[j]-rm[k])) > 0:
        break
    k=k+1

ans=sum(pm[:X])+sum(qm[:Y])
print(ans)
N = int(input())
class DFactorial(self, n):
  if N < 2:
    return 1
  else:
    n * DFactorial(n-2)

print(DFactorial(N))

### FIXED CODE ###

N = int(input())
if N%2 == 1:
  print(0)
else:
  i = N//10
  c = 0
  while i != 0:
    c += i
    i = i//5
  print(c)
import numpy as np

N = int(input())
grid = np.zeros((2, N),dtype="int")
for i in range(2):
    grid[i] = np.array([int(x) for x in input().split()])

candy_sums = np.zeros((2, N), dtype="int")
for i in range(2):
    for n in range(N):
        candy_sums[i,n] += grid[i,n]
        if (n-1) >= 0 & (i-1) >= 0:
            candy_sums[i,n] += max(candy_sums[i-1,n], candy_sums[i,n-1])
        elif (i-1) >= 0:
            candy_sums[i,n] += candy_sums[i-1, n]
        elif (n-1) >=0:
            candy_sums[i,n] += candy_sums[i, n-1]
            
print(candy_sums[1,N-1])

### FIXED CODE ###

import numpy as np

N = int(input())
grid = np.zeros((2, N),dtype="int")
for i in range(2):
    grid[i] = np.array([int(x) for x in input().split()])

candy_sums = np.zeros((2, N), dtype="int")
for i in range(2):
    for n in range(N):
        candy_sums[i,n] += grid[i,n]
        if (n-1) >= 0 & (i-1) >= 0:
            candy_sums[i,n] += max(candy_sums[i-1,n], candy_sums[i,n-1])
        elif (i-1) >= 0:
            candy_sums[i,n] += candy_sums[i-1, n]
        elif (n-1) >=0:
            candy_sums[i,n] += candy_sums[i, n-1]
            
print(candy_sums[1,N-1])
#-*- coding: utf-8 -*-
N = int(input())
L_list = [int(input()) for n in range(2N)]

L_list.sort()
print(sum(L_list[1::2]))

### FIXED CODE ###

#-*- coding: utf-8 -*-
N = int(input())
L_list = list(map(int, input().split()))
L_list.sort()
print(sum(L_list[::2]))
N = int(input())
S = input()
  
co = 0
index =0
n =[]
str = ""

for i in range(N):
  index=str.find(S[i])
  if index == -1 :
    str += S[i]
    n.append(2)
  else :
    n[i] += 1

co = 1
for i in range(len(n)):
  co = co * n[i]
co -= 1

print(co % 1000000007)


### FIXED CODE ###

N = int(input())
S = input()
  
co = 0
index =0
n =[]
str = ""

for i in range(N):
  index=str.find(S[i])
  if index == -1 :
    str += S[i]
    n.append(2)
  else :
    n[index] += 1

co = 1
for i in range(len(n)):
  co = co * n[i]
co -= 1

print(co % 1000000007)
c = input()
abc = 'abcdefghijklmnopqrstuvwxyz'
for i in range(26) :
    if abc[i] == c
        print(abc[i+1])
        break

### FIXED CODE ###

c=str(input())
if c == 'a' :
    print("b")
elif c == 'b' :
    print("c")
elif c == 'c' :
    print("d")
elif c == 'd' :
    print("e")
elif c == 'e' :
    print ("f")
elif c == 'f' :
    print("g")
elif c == 'g' :
    print("h")
elif c == 'h' :
    print("i")
elif c == 'i' :
    print("j")
elif c == 'j' :
    print("k")
elif c == 'k' :
    print("l")
elif c == 'l' :
    print("m")
elif c == 'm' :
    print("n")
elif c == 'n' :
    print("o")
elif c == 'o' :
    print("p")
elif c == 'p' :
    print("q")
elif c == 'q' :
    print("r")
elif c == 'r' :
    print("s")
elif c == 's' :
    print("t")
elif c == 't' :
    print("u")
elif c == 'u' :
    print("v")
elif c == 'v' :
    print("w")
elif c == 'w' :
    print("x")
elif c == 'x' :
    print("y")
elif c == 'y' :
    print("z")
import numpy as np
n,m = map(int,input().split())
a_array = np.array([map(int,input().split())])
for i in range(m):

  a_array[np.argmax(a_array)] = a_array[np.argmax(a_array)]//2
   
print(np.sum(a_array))


### FIXED CODE ###

n,m = map(int,input().split())
import math
a_list = list(map(int,input().split()))
for i in range(n):
  a_list[i] = -1 * a_list[i]
import heapq
heapq.heapify(a_list)
for j in range(m):
  
  a = heapq.heappop(a_list)
  a = math.ceil(a/2)
  heapq.heappush(a_list,a)


print(-1 * sum(a_list))
A,B,H,M=map(int,input().split())
import math

m=360*M/60
h=360*H/12+30*M/60

if m>=h:
    p=m-h

else:

    p=h-m

if H==M:
    print(0)
else:


    ans=(A**2+B**2-2*A*B*math.cos(math.radians(p)))**(1/2)

print(ans)


### FIXED CODE ###

A,B,H,M=map(int,input().split())
import math

m=360*M/60
h=360*H/12+30*M/60

if m>=h:
    p=m-h

else:

    p=h-m


if p==0:
    print(abs(A-B))

else:

    l=math.radians(p)

    ans=(A**2+B**2-2*A*B*math.cos(l))**(1/2)

    print(ans)
from fractions import gcd
from functools import reduce
n=int(input())
a=list(map(int,input().split()))
def lcm_base(x, y):
    return (x * y) // math.gcd(x, y)

def lcm(*numbers):
    return reduce(lcm_base, numbers, 1)

def lcm_list(numbers):
    return reduce(lcm_base, numbers, 1)
k=0
m=lcm_list(a)-1
for i in range(n):
    k+=m%a[i]
print(k)

### FIXED CODE ###

from fractions import gcd
from functools import reduce
n=int(input())
a=list(map(int,input().split()))
def lcm_base(x, y):
    return (x * y) // gcd(x, y)

def lcm(*numbers):
    return reduce(lcm_base, numbers, 1)

def lcm_list(numbers):
    return reduce(lcm_base, numbers, 1)
k=0
m=lcm_list(a)-1
for i in range(n):
    k+=m%a[i]
print(k)
import sys

import numpy as np
from scipy.sparse.csgraph import dijkstra

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

H, W = list(map(int, input().split()))
C = np.array([list(map(int, input().split())) for _ in range(10)], dtype=int)
A = np.array([list(map(int, input().split())) for _ in range(H)], dtype=int)
A[A == -1] = 1

mp = dijkstra(C, directed=True)[:, 1]
nums, counts = np.unique(A, return_counts=True)
print(int((mp[nums] * counts).sum()))


### FIXED CODE ###

import sys

import numpy as np
from scipy.sparse.csgraph import dijkstra

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

H, W = list(map(int, input().split()))
C = np.array([list(map(int, input().split())) for _ in range(10)], dtype=int)
A = np.array([list(map(int, input().split())) for _ in range(H)], dtype=int)

mp = dijkstra(C, directed=True)[:, 1]
ans = 0
for n in range(10):
    ans += mp[n] * np.sum(A == n)
print(int(round(ans)))
import bisect,collections,copy,itertools,math,string
def I(): return int(input())
def S(): return input()
def LI(): return list(map(int,input().split()))
def LS(): return list(input().split())
##################################################
N = I()
A = LI()
_123 = [0]*N
_123count = [0]*N
for x in A:
    _123[x-1] += 1
_123copy = copy.copy(_123)
_123copy.sort(reverse=True)
_count = {}
for i,x in enumerate(_123copy):
    if x==0:
        break
    if x==1:
        _123count[i] = 0
    elif i!=0 and _123copy[i]==_123copy[i-1]:
        _123count[i] = _123count[i-1]
    else:
        _123count[i] = math.factorial(x)//((math.factorial(x-2))*(math.factorial(2)))
        _count[x] = _123count[i]
_sum = sum(_123count)
for x in A:
    temp = _123[x-1]-1
    if temp<=0:
        print(_sum)
    elif temp==1:
        print(_sum-1)
    else:
        if (temp+1) in _count:
            tempminus = _count[temp+1]
        else:
            tempminus = math.factorial(temp+1)//((math.factorial(temp-1))*(math.factorial(2)))
            _count[temp+1] = tempminus
        if (temp) in _count:
            tempplus = _count[temp]
        else:
            tempplus = math.factorial(temp)//((math.factorial(temp-2))*(math.factorial(2)))
            _count[temp] = tempplus
        print(_sum-tempminus+tempplus)


### FIXED CODE ###

import bisect,collections,copy,itertools,math,string
def I(): return int(input())
def S(): return input()
def LI(): return list(map(int,input().split()))
def LS(): return list(input().split())
##################################################
N,M = LI()
if N <= 1:
    n = 0
else:
    n = math.factorial(N)//((math.factorial(N-2))*(math.factorial(2)))
if M <= 1:
    m = 0
else:
    m = math.factorial(M)//((math.factorial(M-2))*(math.factorial(2)))
print(n+m)
a,b,c,d=map(int,input().split())

from math import gcd
c_d=c*d/gcd(c,d)
wari_c=int(b//c-a//c)
wari_d=int(b//d-a//d)
wari_c_d=int(b//c_d-a//c_d)

print(b-a+1-(wari_c+wari_d-wari_c_d))

### FIXED CODE ###

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

import fractions
lcmcd = c * d // fractions.gcd(c,d)
bc = b // c
ac = a // c
bd = b // d
ad = a // d
blcmcd = b // lcmcd
alcmcd = a // lcmcd

if a % c != 0:
    ac += 1
if a % d != 0:
    ad += 1
if a % lcmcd != 0:
    alcmcd += 1

print((b - a + 1) - ((bc - ac + 1) + (bd - ad + 1) - (blcmcd -alcmcd + 1)))
A = int(input())
P = int(input())
B = 3*A + P

print(int(B // 2))

### FIXED CODE ###

A,P = map(int,input().split())
print((3*A + P) // 2)
s = list(map(int, input().split()))
l = list(range(s[0],s[1]+1))

ans = set(l[:s[2]] + l[len(l)-s[2]:])

for i in ans:
    print(i)

### FIXED CODE ###

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

l = [i for i in range(a, b+1) if (i < a+k) or (i > b-k)]

print(*l, sep="\n", end="")
N, A, B, K = map(int, input().split())

MOD = 998244353
factorials = [1]
inv_facts = [1]
for i in range(1, N+1):
    factorials.append(factorials[-1] * i % MOD)
    inv_facts.append(inv_facts[-1] * pow(i, MOD-2, MOD) % MOD)

def combi(n, k):
    ret = factorials[n]
    ret *= inv_facts[k]
    ret %= MOD
    ret *= inv_facts[n-k]
    ret %= MOD
    return ret

ans = 0
for a in range(N+1):
    rest = K - (A * a)
    if rest >= 0 and rest % B == 0:
        b = rest // B
        tmp = combi(N, a) * combi(N, b) % MOD
        ans += tmp
        ans %= MOD
print(ans)



### FIXED CODE ###

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

MOD = 998244353
factorials = [1]
inv_facts = [1]
for i in range(1, N+1):
    factorials.append(factorials[-1] * i % MOD)
    inv_facts.append(inv_facts[-1] * pow(i, MOD-2, MOD) % MOD)

def combi(n, k):
    ret = factorials[n]
    ret *= inv_facts[k]
    ret %= MOD
    ret *= inv_facts[n-k]
    ret %= MOD
    return ret

ans = 0
for a in range(N+1):
    rest = K - (A * a)
    if rest < 0:
        break
    if rest % B == 0:
        b = rest // B
        if b <= N:
            tmp = combi(N, a) * combi(N, b) % MOD
            ans += tmp
            ans %= MOD
print(ans)
n = int(input())
s = list(input())
t = s[::-1]
u = s[0::]
#できるだけ左から(を追加 &右から)を追加

#右から数えて最初に(より左にある)の数　と　)より右にある(の数？
v = []
si = s.index(")")
ti = t.index("(")

stock = 0
i = 0

for i in s:
    if i=="(":
        stock+=1
        v.append("(")
    else:
        if stock ==0:
            v.insert(0,"(")
            v.append(")")
        else:
            stock -= 1
            v.append(")")

for i in range(stock):
    v.append(")")

print(*v,sep='')

### FIXED CODE ###

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


v = []


stock = 0

for i in s:
    if i=="(":
        stock+=1
        v.append("(")
    else:
        if stock ==0:
            v.insert(0,"(")
            v.append(")")
        else:
            stock -= 1
            v.append(")")

for i in range(stock):
    v.append(")")

print(*v,sep='')
MAXN = 10**6+1
p = 10**9 + 7

fact = [1] * MAXN
invfact = [1] * MAXN
for i in range(1, MAXN):
    fact[i] = fact[i-1] * i % p
invfact[MAXN-1] = pow(fact[MAXN-1], p-2, p)
for i in range(MAXN-1, 0, -1):
    invfact[i-1] = invfact[i] * i % p
    
def nCk(n, k):
    return fact[n] * invfact[n-k] * invfact[k] % p

K = int(input())
N = len(input())

ans = 0
for i in range(N, N+K+1):
    ans += pow(25, i-N, p) * nCk(i-1, N-1) * pow(26, N+K-i, p) % p
    ans %= p
print(ans)

### FIXED CODE ###

MAXN = 2*10**6+2
p = 10**9 + 7

fact = [1] * MAXN
invfact = [1] * MAXN
for i in range(1, MAXN):
    fact[i] = fact[i-1] * i % p
invfact[MAXN-1] = pow(fact[MAXN-1], p-2, p)
for i in range(MAXN-1, 0, -1):
    invfact[i-1] = invfact[i] * i % p
    
def nCk(n, k):
    return fact[n] * invfact[n-k] * invfact[k] % p

K = int(input())
N = len(input())

ans = 0
for i in range(N, N+K+1):
    ans += pow(25, i-N, p) * nCk(i-1, N-1) * pow(26, N+K-i, p) % p
    ans %= p
print(ans)
import math


def primes(x):
    if x < 2: return []

    primes = [i for i in range(x)]
    primes[1] = 0 # 1は素数ではない

    # エラトステネスのふるい
    for prime in primes:
        if prime > math.sqrt(x): break
        if prime == 0: continue
        for non_prime in range(2 * prime, x, prime): primes[non_prime] = 0

    return [prime for prime in primes if prime != 0]


N, P = map(int, input().split(' '))
ans = 1
t = 2
while t**N <= P:
    t += 1
prime_nums = primes(t)
for a in prime_nums:
    if P % (a**N) == 0:
        temp = P // (a**N)
        count = 1
        while temp % (a**N) == 0:
            count += 1
            temp // (a**N)
        ans *= a**temp
    elif a**N > P:
        break
print(ans)


### FIXED CODE ###

N = input()
count = 0
for i in range(len(N)):
    if N[i] == '2':
        count+=1
print(count)
n = int(input())
a = list(map(int, input().split()))

div = 0
for i in range(n):
    div += a / a[i]
print(1 / div)


### FIXED CODE ###

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

div = 0
for i in range(n):
    div += 1 / a[i]
print(1 / div)
input()
data = input().split()

minimum = max(data)
maximum = min(data)
total = sum(data)

print(minimum, maximum, total)

### FIXED CODE ###

input()
nums = [int(i) for i in input().split()]

maximum = max(nums)
minimum = min(nums)
total = sum(nums)

print(minimum, maximum, total)
f = input().strip().split()
q = []
for e in f:
    if e =='+':
        q.append(q.pop() + q.pop())
    elif e == '-':
        q.append(-q.pop() + q.pop())
    elif e == '*':
        q.append(q.pop() * q.pop())
    else:
        q.append(int(q))
print(q[0])

### FIXED CODE ###

f = input().strip().split()
q = []
for e in f:
    if e == '+':
        q.append(q.pop() + q.pop())
    elif e == '-':
        q.append(-q.pop() + q.pop())
    elif e == '*':
        q.append(q.pop() * q.pop())
    else:
        q.append(int(e))

print(q[0])
def main():
    import sys

    def input(): return sys.stdin.readline().rstrip()

    n = int(input())
    mod = 10**9 + 7
    a.sort()
    check = [i+1 - (i+n)%2 for i in range(n)]
    if a != check:
        print(0)
        return
    else:
        ans = pow(2, n//2, mod)
        print(ans)




if __name__ == '__main__':
    main()

### FIXED CODE ###

def main():
    import sys

    def input(): return sys.stdin.readline().rstrip()

    n = int(input())
    a = list(map(int, input().split()))
    mod = 10**9 + 7
    a.sort()
    check = [i+1 - (i+n)%2 for i in range(n)]
    if a != check:
        print(0)
        return
    else:
        ans = pow(2, n//2, mod)
        print(ans)




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

A = sorted(A)

count_m = 0
count_z = 0
count_p = 0
sum_abs = 0

for i in range(N):
    if A[i] < 0:
        count_m += 1
        sum_abs -= A[i]
    elif A[i] == 0:
        count_z += 1
    else:
        count_p += 1
        sum_abs += A[i]

if count_m + count_z == 0:
    print(sum_abs-2*min(A))
    tmp = A[0]
    for i in range(N-2):
        print(tmp, A[i+1])
        tmp -= A[i+1]
    print(A[-1], tmp)
    print(A[2*N])

elif count_p + count_z == 0:
    print(sum_abs+2*max(A))
    tmp = A[-1]
    for i in range(N-1):
        print(tmp, A[i])
        tmp -= A[i]

elif count_p + count_m == 0:
    print(0)
    for i in range(N-1):
        print(0, 0)

else:
    print(sum_abs)
    cmz = count_m + count_z
    tmp = A[-1]
    for i in range(cmz - 1):
        print(tmp, A[i])
        tmp -= A[i]
    tmp_2 = A[cmz-1]
    for i in range(count_p-1):
        print(tmp_2, A[i+cmz])
        tmp_2 -= A[i+cmz]
    print(tmp, tmp_2)

### FIXED CODE ###

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

A = sorted(A)

count_m = 0
count_z = 0
count_p = 0
sum_abs = 0

for i in range(N):
    if A[i] < 0:
        count_m += 1
        sum_abs -= A[i]
    elif A[i] == 0:
        count_z += 1
    else:
        count_p += 1
        sum_abs += A[i]

if count_m + count_z == 0:
    print(sum_abs-2*min(A))
    tmp = A[0]
    for i in range(N-2):
        print(tmp, A[i+1])
        tmp -= A[i+1]
    print(A[-1], tmp)

elif count_p + count_z == 0:
    print(sum_abs+2*max(A))
    tmp = A[-1]
    for i in range(N-1):
        print(tmp, A[i])
        tmp -= A[i]

elif count_p + count_m == 0:
    print(0)
    for i in range(N-1):
        print(0, 0)

else:
    print(sum_abs)
    cmz = count_m + count_z
    tmp = A[-1]
    for i in range(cmz - 1):
        print(tmp, A[i])
        tmp -= A[i]
    tmp_2 = A[cmz-1]
    if count_p != 0:
        for i in range(count_p-1):
            print(tmp_2, A[i+cmz])
            tmp_2 -= A[i+cmz]
        print(tmp, tmp_2)
a,t=input().split()
a=int(a)
t=int(t)
x = a * t
i=int(input(i))
c=min(x,i)

### FIXED CODE ###

a,t,i=input().split()
a=int(a)
t=int(t)
x=a*t
i=int(i)
c=min(x,i)
print(c)
import math
a,b,x = map(int,input().split())
if(x/(a*a)>=b/2):
    print(90 - (math.atan(a/(2*(b -(x/(a*a)))))*180/math.pi))
else:
     print(90 - ((math.atan(x/(a*b)/b)*180/math.pi)))

### FIXED CODE ###

import math
a,b,x = map(int,input().split())
if x/(a*a) == b:
    print(0)
elif(x/(a*a)>=b/2):
    print(90 - (math.atan(a/(2*(b -(x/(a*a)))))*180/math.pi))    
else:
     print(90 - ((math.atan(2*x/(a*b*b))*180/math.pi)))
#!/usr/bin/env python3
N = int(input())

def solve():
    s = []
    print(0)
    s.append(input())
    if s[-1] == 'Vacant':
        return

    l, r = 0, N
    while r - l > 1:
        m = (l + r) // 2
        print(m)
        s.append(input())
        if s[-1] != 'Vacant':
            return

        if s[i - 1] == s[i]:
            l, r = (l, m) if (m - l) % 2 == 1 else (m, r)
        else:
            l, r = (m, r) if (m - l) % 2 == 1 else (l, m)
    print(m + 1)

print(solve())


### FIXED CODE ###

#!/usr/bin/env python3
N = int(input())

print(0, flush=True)
w0 = input()
if w0 == 'Vacant':
    exit()

l, r = 0, N
while True:
    m = (l + r) // 2
    print(m, flush=True)
    w1 = input()
    if w1 == 'Vacant':
        break
    if m % 2 == (w0 != w1):
        l = m
    else:
        r = m
# AGC 025 A - Digits Sum
N = int(input())

def sum_of(num): #各位の合計値を返す
    list_b = []
    k = 0
    if num > 0:
        while num > 0:
            list_b.append(num % 10)
            num = num // 10
        for i in range(len(list_b)):
            k += list_b[i]
        return k 
    if num <= 0:
        next
        

list_a =[]
for i in range(N-2):
    A = i + 2
    B = N - i - 2   
    list_a.append(sum_of(A) + sum_of(B))
    
print(min(list_a))

### FIXED CODE ###

N = int(input())

def sum_of(num): 
    list_b = []
    k = 0
    while num > 0:
        list_b.append(num%10)
        num //= 10
    for i in range(len(list_b)):
        k += list_b[i]
    return k 

list_a =[]
if N == 2:
    print(str(2))
if N == 3:
    print(str(3))
if N >= 4:
    for i in range(2,N-1):
        A = i
        B = N - i
        list_a.append(sum_of(A) + sum_of(B))
    print(min(list_a))
n,m = map(int,input().split())
a = []
for i in range(m):
    a.append(int(input()))
fib = [1,1]
for i in range(n):
    fib.append((fib[i]+fib[i+1])%1000000007)
answer = fib[a[0]-1]
for i in range(m-1):
    if a[i] + 1 == a[i+1]:
        answer = 0
    else:
        answer = answer * fib[a[i+1]-a[i]-2] % 1000000007
answer = answer * fib[n-a[m-1]-1] % 1000000007
print(answer)

### FIXED CODE ###

import sys
n,m = map(int,input().split())
a = []
for i in range(m):
    a.append(int(input()))
fib = [1,1]
for i in range(n):
    fib.append((fib[i]+fib[i+1])%1000000007)
if m == 0:
    print(fib[n]%1000000007)
    sys.exit()
answer = fib[a[0]-1]
for i in range(m-1):
    if a[i] + 1 == a[i+1]:
        answer = 0
    else:
        answer = answer * fib[a[i+1]-a[i]-2] % 1000000007
answer = answer * fib[n-a[m-1]-1] % 1000000007
print(answer)
str = input()
ans = []
allow = ["A","C","G","T"]
count = 0
for s in str:
  if s in allow:
    count = count + 1
    ans.append(count)
  else:
    count = 0
  
print(sorted(ans)[-1])

### FIXED CODE ###

str = input()
ans = []
allow = ["A","C","G","T"]
count = 0
for s in str:
  if s in allow:
    count = count + 1
    ans.append(count)
  else:
    count = 0
    
if len(ans) == 0:
  print(0)
else:
  print(sorted(ans)[-1])
import itertools
import math 

n,s = [int(input()) for _ in range(2)]

def n_base_sum(n,b):
    if(int(n/b)):
        return n_base_sum(int(n/b),b)+n%b
    else:
        return n%b

def search_p(n,s):
    for p in range(math.ceil(math.sqrt(n))+1,0,-1):
        b = n //p
        q = n % b
        if p+q ==s:
            return b
    return -1

ans =-1
flag = False
answers = []
if s == n:
    ans = n+1
    flag =True
    answers.append(ans)
for b in  range(2,math.ceil(math.sqrt(n))+1):
    if s== n_base_sum(n,b):
        ans = b
        flag = True
        answers.append(ans)
        break
ans = search_p(n,s)
if ans != -1:
    flag =True
    answers.append(ans)


if not flag:
    print(-1)
else:
    print(int(min(answers)))


### FIXED CODE ###

import itertools
import math 
 
n,s = [int(input()) for _ in range(2)]
 
def n_base_sum(n,b):
    if(math.floor(n/b)):
        return n_base_sum(math.floor(n/b),b)+n%b
    else:
        return n%b
 
def search_p(n,s):
    for p in range(math.floor(math.sqrt(n))+1,0,-1):
        b = (n-s)//p + 1
        if b >1 :
            q = n % b
            if p+q ==s and q < b and n == p*b+q and p<b:
                return b
        
    return -1
 
ans =-1
flag = False
answers = []
if s == n:
    ans = n+1
    flag =True
    answers.append(ans)
for b in  range(2,math.ceil(math.sqrt(n))+1):
    if s== n_base_sum(n,b):
        ans = b
        flag = True
        answers.append(ans)
        break
ans = search_p(n,s)
if ans != -1:
    flag =True
    answers.append(ans)
 
if not flag:
    print(-1)
else:
    print(int(min(answers)))
from itertools import chain

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

ab = []
for i in range(m):
    ab.append(list(map(int, input().split())))

count = 0

for i in range(1, n+1):

    c= []
    e= []
    for j in ab:
        if i in j:
            c.append(j)
    d =list(chain.from_iterable(c))

    for k in d:
        e.append(H[k-1])

    if len(e)==0:

        continue
    else max(e) == H[i-1]:
        count += 1

print(count)

### FIXED CODE ###

N, M = map(int, input().split())
c_list = [[] for _ in range(N)]
e_list = list(map(int, input().split()))
for _ in range(M):
   a, b = map(lambda i: int(i) - 1, input().split())
   c_list[a].append(b)
   c_list[b].append(a)
ans = 0
for i, e in enumerate(e_list):
   for j in c_list[i]:
       if e <= e_list[j]:
           break
   else:
       ans += 1

print(ans)