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

import string, random
def randomname(n):
    return ''.join(random.choices(string.ascii_letters + string.digits, k=n))

#sList, tList = list(randomname(3000)), list(randomname(3000))
sList, tList = list(input()), list(input())

dp = [[[0, ""] for _ in range(len(tList) + 1)] for _ in range(2)]
index = 0
for i, s in enumerate(sList, start=1):
    index = i % 2
    sameLen = 0
    sameStr = ""
    for j, t in enumerate(tList, start=1):
        aboveLen = dp[index-1][j][0]
        aboveStr = dp[index-1][j][1]
        if s == t:
            sameLen = dp[index-1][j-1][0] + 1
            sameStr = dp[index-1][j-1][1] + s
        if sameLen > aboveLen:
            dp[index][j][0] = sameLen
            dp[index][j][1] = sameStr
        else:
            dp[index][j][0] = aboveLen
            dp[index][j][1] = aboveStr

print(dp[index][-1][1])



### FIXED CODE ###

sList, tList = list(input()), list(input())

dp = [[0] * (len(tList) + 1) for _ in range(len(sList) + 1)]
for i, s in enumerate(sList, start=1):
    sameNum = 0
    for j, t in enumerate(tList, start=1):
        num = dp[i-1][j]
        if s == t:
            sameNum = max(num, dp[i-1][j-1] + 1)
        dp[i][j] = max(num, sameNum)

ans = ""

while(i > 0, j > 0):
    num = dp[i][j]
    if num == 0:
        break
    if sList[i-1] == tList[j-1]:
        ans = sList[i-1] + ans
        i -= 1
        j -= 1
    else:
        if dp[i-1][j] > dp[i][j-1]:
            i -= 1
        else:
            j -= 1

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

N = int(input())
L = list(map(int,input().split()))
L.sort(reverse=True)
ans = 0    
for i in range (0,N-2):
  for j in range (i+2,N):
    n = sum(x > L[i]-L[j] for x in L[i+1:j]) 
    ans = ans + n
print(ans) 

### FIXED CODE ###

N = int(input())
L = list(map(int,input().split()))
L.sort()
ans = 0
for i in range (N-1,1,-1): 
  s = 0 
  l = i - 1
  while l > s:
    if L[s] + L[l] > L[i]:
      ans = ans + (l - s)
      l = l - 1
    else:
      s = s + 1
print(ans)
### BUGGY CODE ###

s = input()
s = list(s)
 
def del_01(s,counter):
  for i in range(len(s)-1):
    if s[i] == '1' and s[i+1] == '0':
      s[i] ='w'
      s[i+1] = 'w'
      counter += 2
    elif s[i] == '0' and s[i+1] == '1':
      s[i] = 'w'
      s[i+1] = 'w'
      counter += 2
  s.remove('w')
  return s, counter
counter = 0
while (s.count('0') != 0) and (s.count('1') != 0) and (s != []):
  s, counter = del_01(s, counter)

print(counter)

### FIXED CODE ###

s = input()
s = list(s)

count0 = s.count('0')
count1 = s.count('1')
                 
print(min(count0,count1)*2)
### BUGGY CODE ###

tkhp, tkat, aohp, aoat = map(int, input().split())

while True:
    aohp -= tkat
    tkhp -= aoat
    if aohp == 0:
        print('Yes')
        break
    elif tkhp == 0:
        print('No')
        break
    

### FIXED CODE ###

thhp, that, aohp, aoat = map(int, input().split())

while True:
    aohp -= that
    if aohp <= 0:
        print('Yes')
        break
        
    thhp -= aoat
    if thhp <= 0:
        print('No')
        break
### BUGGY CODE ###

from collections import defaultdict
from fractions import Fraction
import sys
input = sys.stdin.readline
N=int(input())
mod=10**9+7
dic=defaultdict(lambda: [0,0])
c=0
d=0
e=0
for i in [0]*N:
 A,B = map(int,input().split())
 if A==0 and B==0:
  e+=1
 elif A==0:
  c+=1
 elif B==0:
  d+=1
 else:
  if Fraction(A,B)>0:
   dic[Fraction(A,B)][0]+=1
  else:
   dic[Fraction(-B,A)][1]+=1
ans=1
for k in dic:
 ans=ans*(pow(2,dic[k][0],mod)+pow(2,dic[k][1],mod) -1)
ans=ans*(pow(2,c,mod)+pow(2,d,mod)-1)
print((ans-1+e)%mod)

### FIXED CODE ###

from collections import defaultdict
from math import gcd
import sys
input = sys.stdin.readline
N=int(input())
mod=10**9+7
dic=defaultdict(lambda: [0,0])
c=0
d=0
e=0
for i in [0]*N:
 A,B = map(int,input().split())
 if A==0 and B==0:
  e+=1
 elif A==0:
  c+=1
 elif B==0:
  d+=1
 else:
  g=gcd(A,B)
  A//=g
  B//=g
  if A*B>0:
   dic[(abs(A),abs(B))][0]+=1
  else:
   dic[(abs(B),abs(A))][1]+=1
ans=1
for k in dic:
 ans=ans*(pow(2,dic[k][0],mod)+pow(2,dic[k][1],mod) -1)
ans=ans*(pow(2,c,mod)+pow(2,d,mod)-1)
print((ans-1+e)%mod)
### BUGGY CODE ###

from heapq import heappop, heappush

def dijkstra(s):
    used = [1] * n
    dp = [INF] * n
    dp[s] = 0
    hq = []
    used[s] = 0
    for i in cost[s]:
        heappush(hq, i)

    while hq:
        minv = heappop(hq)
        if used[minv[1]] == 0:
            continue
        v = minv[1]
        dp[v] = minv[0]
        used[v] = 0
        for i in cost[v]:
            if used[i[1]]:
                heappush(hq, [i[0] + dp[v], i[1]])
    return dp

INF = 10 ** 18
n, x, y = map(int, input().split())
cost = [[] for _ in range(n)]

for i in range(n - 1):
    a = i
    b = i + 1
    cost[a].append([1, b])
    cost[b].append([1, a])
cost[x - 1].append([1, y - 1])
cost[y - 1].append([1, x - 1])
ans = [0] * n
for i in range(n - 1):
    dp1 = dijkstra(i)
    for j in dp1[i:]:
        ans[j] += 1

for i in ans[1:]:
    print(i)

### FIXED CODE ###

from heapq import heappop, heappush

def dijkstra(s):
    used = [1] * n
    dp = [INF] * n
    dp[s] = 0
    hq = []
    used[s] = 0
    for i in cost[s]:
        heappush(hq, i)

    while hq:
        minv = heappop(hq)
        if used[minv[1]] == 0:
            continue
        v = minv[1]
        dp[v] = minv[0]
        used[v] = 0
        for i in cost[v]:
            if used[i[1]]:
                heappush(hq, [i[0] + dp[v], i[1]])
    return dp

INF = 10 ** 18
n, x, y = map(int, input().split())
cost = [[] for _ in range(n)]

for i in range(n - 1):
    a = i
    b = i + 1
    cost[a].append([1, b])
    cost[b].append([1, a])
cost[x - 1].append([1, y - 1])
cost[y - 1].append([1, x - 1])
ans = [0] * n
for i in range(n - 1):
    dp1 = dijkstra(i)
    for j in dp1[i:]:
        ans[j] += 1

for i in ans[1:]:
    print(i)
### BUGGY CODE ###

def main():
    k, n = map(int, input().split())
    a = list(map(int, input().split()))

    d = [a[i] - a[i-1] for i in range(1, n)]
    d.insert(0, a[0])
    d.append(k - a[-1])

    d = tuple(d)

    most_min_path = 10000

    for i in range(n):
        if i == 0:
            normal_ck = sum(d) - d[i] - d[-1]
            reverse_ck = sum(d) - d[i+1]
        elif i == n - 1:
            normal_ck = sum(d) - d[i]
            reverse_ck = sum(d) - d[i+1] - d[0]
        else:
            normal_ck = sum(d) - d[i]
            reverse_ck = sum(d) - d[i+1]

        if normal_ck > reverse_ck:
            min_ck = reverse_ck
        else:
            min_ck = normal_ck

        if most_min_path > min_ck:
            most_min_path = min_ck

    print(most_min_path)


if __name__ == '__main__':
    main()

### FIXED CODE ###

k, n = map(int, input().split())
a = list(map(int, input().split()))
a.append(a[0] + k)

d = [a[i+1] - a[i] for i in range(n)]
l = 0
for i in range(n):
    l = max(l, a[i+1] - a[i])
print(k - l)
### BUGGY CODE ###

from collections import deque


def solve(H, W, Ch, Cw, Dh, Dw, maze):
    INF = 10 ** 12
    path = [[INF] * W for _ in range(H)]

    walk = [(0, 1), (0, -1), (-1, 0), (1, 0)]
    warp = [(i, j) for i in range(-2, 3) for j in range(-2, 3) if (i, j) not in [(0, 0)] + walk]

    q = deque()
    path[Ch][Cw] = 0
    q.append((Ch, Cw, 0))

    while q:
        y, x, s = q.popleft()
        for dy, dx in walk:
            ny = y + dy
            nx = x + dx
            if 0 <= ny < H and 0 <= nx < W and maze[ny][nx] == '.' and path[ny][nx] > s:
                path[ny][nx] = s
                if ny == Dh and nx == Dw:
                    break
                q.appendleft((ny, nx, s))
        for dy, dx in warp:
            ny = y + dy
            nx = x + dx
            if 0 <= ny < H and 0 <= nx < W and maze[ny][nx] == '.' and path[ny][nx] > s + 1:
                path[ny][nx] = s + 1
                if ny == Dh and nx == Dw:
                    break
                q.appendleft((ny, nx, s + 1))

    ans = path[Dh][Dw] if path[Dh][Dw] < INF else '-1'
    print(ans)


if __name__ == "__main__":
    H, W = map(int, input().split())
    Ch, Cw = map(lambda x: int(x) - 1, input().split())
    Dh, Dw = map(lambda x: int(x) - 1, input().split())
    maze = [input() for _ in range(H)]
    solve(H, W, Ch, Cw, Dh, Dw, maze)


### FIXED CODE ###

from collections import deque


def solve(H, W, Ch, Cw, Dh, Dw, maze):
    # 後の条件分岐を簡略化するためワープしても迷路外に出ないように壁で囲む
    walled_maze = ['##{}##'.format(row) for row in maze]
    walled_maze.insert(0, '##{}##'.format('#' * W))
    walled_maze.insert(0, '##{}##'.format('#' * W))
    walled_maze.append('##{}##'.format('#' * W))
    walled_maze.append('##{}##'.format('#' * W))

    INF = 10 ** 12
    path = [[INF] * (W + 4) for _ in range(H + 4)]
    walk = [(0, 1), (0, -1), (-1, 0), (1, 0)]
    warp = [(i, j) for i in range(-2, 3) for j in range(-2, 3) if (i, j) not in [(0, 0)] + walk]

    yet = deque()
    yet.append((Ch + 2, Cw + 2, 0))    # 囲った壁の分だけプラス
    path[Ch + 2][Cw + 2] = 0
    done = deque()

    while yet:
        y, x, s = yet.popleft()
        done.append((y, x, s))
        for dy, dx in walk:
            ny = y + dy
            nx = x + dx
            if walled_maze[ny][nx] == '.' and path[ny][nx] > s:
                path[ny][nx] = s
                yet.append((ny, nx, s))
        if len(yet) == 0:
            while done:
                y, x, s = done.popleft()
                for dy, dx in warp:
                    ny = y + dy
                    nx = x + dx
                    if walled_maze[ny][nx] == '.' and path[ny][nx] > s + 1:
                        path[ny][nx] = s + 1
                        yet.append((ny, nx, s + 1))
    ans = path[Dh + 2][Dw + 2] if path[Dh + 2][Dw + 2] < INF else -1
    print(ans)


if __name__ == '__main__':
    H, W = map(int, input().split())
    Ch, Cw = map(lambda x: int(x) - 1, input().split())
    Dh, Dw = map(lambda x: int(x) - 1, input().split())
    maze = [input() for _ in range(H)]
    solve(H, W, Ch, Cw, Dh, Dw, maze)
### BUGGY CODE ###

import bisect
def bisect_left_reverse(a, x):
    if a[0] <= x:
        return 0
    if x < a[-1]:
        return len(a)
    ok = len(a) - 1
    ng = 0
    while (abs(ok - ng) > 1):
        mid = (ok + ng) // 2
        if a[mid] <= x:
            ok = mid
        else:
            ng = mid
    return ok
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()))
p.sort(reverse=True)
q.sort(reverse=True)
r.sort(reverse=True)
A = p[:X]+q[:Y]
A.sort(reverse=True)
for n in r:
    if A[-1] < n:
        index = bisect_left_reverse(A,n)
        A.insert(index,n)
        A.pop(-1)
    else:
        break
print(sum(A))

### FIXED CODE ###

import bisect
def bisect_left_reverse(a, x):
    if a[0] <= x:
        return 0
    if x < a[-1]:
        return len(a)
    ok = len(a) - 1
    ng = 0
    while (abs(ok - ng) > 1):
        mid = (ok + ng) // 2
        if a[mid] <= x:
            ok = mid
        else:
            ng = mid
    return ok
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()))
p.sort(reverse=True)
q.sort(reverse=True)
r.sort(reverse=True)
A = p[:X]+q[:Y]
B = []
A.sort(reverse=True)
for i in range(len(r)):
    n = r[i]
    if A[0] == 0:
      break
    if A[-1] < n:
        index = bisect_left_reverse(A,n)
        A.pop(-1)
        B.append(n)
    else:
        break
print(sum(A)+sum(B))
### BUGGY CODE ###

# -*- coding: utf-8 -*-
 
import math
import itertools
import sys
import copy
#import numpy as np
 
# 入力
#A, B, C, D = map(int, input().split())
#L = list(map(int, input().split()))
#S = list(str(input()))
#N = int(input())
#S = str(input())

A, B, M = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

#割引券を使う場合
ans = sys.maxsize
for _ in range(M) :
  x, y, c = map(int, input().split())
  ans = min(ans, a[x-1]+b[y-1]-c)

#その他の組み合わせ
for i in range(A) :
  for j in range(B) :
    ans = min(ans, a[i] + b[j])

print (ans)



### FIXED CODE ###

# -*- coding: utf-8 -*-
 
import math
import itertools
import sys
import copy
#import numpy as np
 
# 入力
#A, B, C, D = map(int, input().split())
#L = list(map(int, input().split()))
#S = list(str(input()))
#N = int(input())
#S = str(input())

A, B, M = map(int, input().split())
a = list(map(int, input().split()))
b = list(map(int, input().split()))

#割引券を使う場合
ans = sys.maxsize
for _ in range(M) :
  x, y, c = map(int, input().split())
  ans = min(ans, a[x-1]+b[y-1]-c)

#その他の組み合わせ
ans = min(ans, min(a)+min(b))

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

from sys import stdin

N, G = map(int, stdin.readline().split())
dic = {key: 0 for key in range(1, N + 1)}
left, right = N+1, -1
this, next = set(), set()
for i in range(G):
    if i == 0:
        l, r = map(int, stdin.readline().split())
        for j in range(l, r + 1):
            this.add(j)
    else:
        l, r = map(int, stdin.readline().split())
        for j in range(l, r + 1):
            if j in this:
                next.add(j)
        this = next
        next = set()

print(len(this))


### FIXED CODE ###

from sys import stdin, exit

N, G = map(int, stdin.readline().split())
left, right = 1, N
for i in range(G):
    l, r = map(int, stdin.readline().split())
    if l > left:
        left = l
    if r < right:
        right = r
    if right < left:
        print(0)
        exit()

print(right - left + 1)
### BUGGY CODE ###

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

ans = 1
tmp = [p[0]]
for i in range(1, n):
    tmp.append(p[i])
    tmp.sort()
    if p[i] <= tmp[0]:
        ans += 1
print(ans)

### FIXED CODE ###

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

ans = 1
tmp = p[0]
for i in range(1, n):
    if tmp >= p[i]:
        ans += 1
        tmp = p[i]
print(ans)
### BUGGY CODE ###

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

T = [0] * (N + 1)

for a in A:
    T[a] += 1

ns = []
for t in T:
    if t > 0:
        ns.append(t)
ns.sort()
ans = 0
while len(ns) > K:
    ans += ns[0]
    ns = ns[1:]
print(ans)


### FIXED CODE ###

import heapq

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

T = [0] * (N + 1)

for a in A:
    T[a] += 1

ns = []
for t in T:
    if t > 0:
        heapq.heappush(ns, t)
ans = 0
while len(ns) > K:
    ans += heapq.heappop(ns)
print(ans)
### BUGGY CODE ###

n, m = map(int, input().split())
a = [int(input()) for _ in range(m)]
MOD = 10 ** 9 + 7

dp = [0] * (n + 1)
dp[0] = 1
if 1 in a:
    dp[1] = 0
else:
    dp[1] = 1

for i in range(2, n + 1):
    if i in a:
        dp[i] = 0
    else:
        dp[i] = (dp[i - 1] + dp[i - 2]) % MOD

print(dp[n])

### FIXED CODE ###

n, m = map(int, input().split())
a = [0] * (n + 1)
for _ in range(m):
    a[int(input())] = True
MOD = 10 ** 9 + 7

dp = [0] * (n + 1)
dp[0] = 1
if not a[1]:
    dp[1] = 1

for i in range(2, n + 1):
    if not a[i]:
        dp[i] = (dp[i - 1] + dp[i - 2]) % MOD

print(dp[-1])
### BUGGY CODE ###

N=int(input())
X=input()
def popcount(n):
    s=str(bin(n))
    return len([i for i in s if i=='1'])
def f(n,P):
    c=0
    while n!=0:
        n=n%P
        P=popcount(n)
        c=c+1
    return c
x=int(X,2)
P=popcount(x)
for i in range(N):
    F=list(X)
    if F[i]=='1':
        F[i]='0'
        Q=P-1
        y=x-2**(N-i-1)
    else:
        F[i]='1'
        Q=P+1
        y=x+2**(N-i-1)
    print(f(y,Q))

### FIXED CODE ###

N=int(input())
X=input()
def popcount(n):
    s=str(bin(n))
    return len([i for i in s if i=='1'])
def f(n):
    c=1
    while n!=0:
        n=n%popcount(n)
        c=c+1
    return c
x=int(X,2)
P=popcount(x)
F=list(X)
L=[1,2]# L[i]=2**i%(P+1)
M=[1,2]# M[i]=2**i%(P-1)
if P!=1:
    for i in range(1,N):
        L.append((L[i]*2)%(P+1))
        M.append((M[i]*2)%(P-1))
    s=x%(P+1)
    t=x%(P-1)
    for i in range(N):
        if F[i] == '1':
            q = (t - M[N-i-1])%(P-1)
            print(f(q))
        else:
            Q = P + 1
            q = (s + L[N-i-1])%(P+1)
            print(f(q))
else:
    for i in range(1,N):
        L.append(0)
    s=x%2
    for i in range(N):
        if F[i] == '1':
            print(0)
        else:
            q = (s + L[N - i - 1])%2
            print(f(q))
### BUGGY CODE ###

n = int(input())
a = list(map(int,input().split()))
L = []
for i in range(n):
    if i % 2 == 0:
        L = [a[i]] + L
    else:
        L = L + [a[i]]
if n % 2 == 0:
    L.reverse()
print(" ".join(map(str,L)))


### FIXED CODE ###

from collections import deque
n = int(input())
a = list(map(int,input().split()))
q = deque()
for i in range(n):
    if i % 2 == 0:
        q.appendleft(a[i])
    else:
        q.append(a[i])
if n % 2 == 0:
    q.reverse()
print(*q)
### BUGGY CODE ###

import heapq as hq
n,m=map(int,input().split())
a=[list(map(int,input().split())) for i in range(n)]
for i in range(n):
    a[i][1]*=-1
hq.heapify(a)
k=1
ans=0
q=0
while a and k<=m:
    p=hq.heappop(a)
    if p[0]>k:
        hq.heappush(a,p)
        k+=1
    elif p[0]==k:
        ans-=p[1]
        k+=1
    elif p[0]<k:
        p[0]=k
        hq.heappush(a,p)
print(ans)

### FIXED CODE ###

import heapq
n, m = map(int, input().split())
ab = [list(map(int, input().split())) for _ in range(n)]
q = []
heapq.heapify(q)
heapq.heapify(ab)
total = 0
for i in range(m, -1, -1):
    while True:
        if len(ab) != 0:
            p = heapq.heappop(ab)
            if p[0] + i <= m:
                heapq.heappush(q, -p[1])
            else:
                heapq.heappush(ab, p)
                break
        else:
            break
    if len(q) != 0:
        p = heapq.heappop(q)
        total += -p
print(total)
### BUGGY CODE ###

N,K=map(int,input().split())
A=list(map(int,input().split()))
for i in range(K):
    d=[0]*(N+1)
    for j,a in enumerate(A):
        d[max(0,j-a)]+=1
        d[min(N,j+a+1)]-=1
    b=1
    for j in range(N):
        d[j+1]+=d[j]
        if d[j+1]!=N:
            b=0
    A=d[:-1]
    if b:
        break
print(*A)

### FIXED CODE ###

N,K=map(int,input().split())
A=list(map(int,input().split()))
for i in range(K):
    d=[0]*(N+1)
    for j,a in enumerate(A):
        d[max(0,j-a)]+=1
        d[min(N,j+a+1)]-=1
    b=1
    for j in range(N):
        if d[j]!=N:
            b=0
        d[j+1]+=d[j]
    A=d[:-1]
    if b>0:
        break
print(*A)
### BUGGY CODE ###

import math
from functools import reduce

def gcd_list(numbers):
    return reduce(math.gcd, numbers)

K = int(input())

Sum = []
for a in range(1, K+1):
    for b in range(1, K + 1):
        for c in range(1, K + 1):
            gcd = gcd_list([a, b, c])
            Sum.append(gcd)

print(sum(Sum))

### FIXED CODE ###

import math

K = int(input())

Sum = []
for a in range(1, K+1):
    for b in range(1, K + 1):
        gcd2 = math.gcd(a, b)
        for c in range(1, K + 1):
            gcd = math.gcd(gcd2, c)
            Sum.append(gcd)

print(sum(Sum))
### BUGGY CODE ###

x,y = map(int,input().split())
for i in range(2**x):
    li = []
    cnt = 0
    for j in range(x):
        if ((i>>j) & 1):
            li.append(1)
        else:
            li.append(0)
    for k in range(x):
        if li[k] == 1:
            cnt += 2
        else:
            cnt += 4
    if cnt == y:
        print("Yes")
        exit()
print("No")

### FIXED CODE ###

x,y = map(int,input().split())
for i in range(x+1):
    if (i*2 + (x-i) * 4) == y:
        print("Yes")
        exit()
print("No")
### BUGGY CODE ###

n=int(input())

def ju(n):
    l=list(str(n))
    j=[0]*3
    f=0
    for i in range(len(l)):
        if l[i]=='3':
            j[0]=1
        elif l[i]=='5':
            j[1]=1
        elif l[i]=='7':
            j[2]=1
        else:
            f=1
    if sum(j)==3 and f==0:
        return 1
    else:
        return 0

zenbu=[3,5,7]

for i in range(10):
    tmp=[]
    for j in zenbu:
        tmp.append(j+3*(10**(i+1)))
        tmp.append(j+5*(10**(i+1)))
        tmp.append(j+7*(10**(i+1)))
        tmp.append(j)
    zenbu=tmp
  
ans=0
for i in zenbu:
    if i<=n and ju(i)==1:
        ans+=1
print(ans)
      


### FIXED CODE ###

n=int(input())

def ju(n):
    l=list(str(n))
    j=[0]*3
    f=0
    for i in range(len(l)):
        if l[i]=='3':
            j[0]=1
        elif l[i]=='5':
            j[1]=1
        elif l[i]=='7':
            j[2]=1
        else:
            f=1
    if sum(j)==3 and f==0:
        return 1
    else:
        return 0

zenbu=[3,5,7]

for i in range(8):
    tmp=[]
    for j in zenbu:
        tmp.append(j+3*(10**(i+1)))
        tmp.append(j+5*(10**(i+1)))
        tmp.append(j+7*(10**(i+1)))
        tmp.append(j)
    zenbu=tmp
  
ans=0
for i in zenbu:
    if i<=n and ju(i)==1:
        ans+=1
print(ans)
### BUGGY CODE ###

import numpy as np
from scipy.sparse.csgraph import connected_components
import collections

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

l = [[0 for _ in range(N)] for _ in range(N)]

for i in range(M):
    l[ab[i][0]-1][ab[i][1]-1] = 1
    l[ab[i][1]-1][ab[i][0]-1] = 1

a = np.array(l)
n, labels = connected_components(a)

print(collections.Counter(labels).most_common()[0][1])

### FIXED CODE ###

from collections import defaultdict
from collections import deque

d = defaultdict(set) #初期中身は空のset

N, M = map(int, input().split())
for i in range(M):
  A, B = map(int, input().split())
  d[A-1].add(B-1)
  d[B-1].add(A-1)
        
check = [0]*N
mans = 0

for i in range(N):
    ans = 0
    if check[i] == 0:
        check[i] = 1
        ans += 1
        sl = deque(list(d[i]))
        while sl:
            s = sl.pop()
            if check[s] == 0:
                check[s] = 1
                ans += 1
                sl.extend(list(d[s]))
    if mans < ans:
        mans = ans

print(mans)
### BUGGY CODE ###

n = int(input())
ans = 0
for i in range(1,n+1,2):
    i = list(str(i))
    if set(i) == {"3","5","7"}:
        ans += 1
print(ans)

### FIXED CODE ###

import itertools
ans = 0
n = int(input())

for k in range(1,10):
    s = itertools.product(["3","5","7"], repeat=k)
    for seq in s:
        x = set()
        for i in seq:
            x.add(i)
        if len(x) != 3:
            continue
        t = "".join(seq)
        if 1 <= int(t) <= n:
            ans += 1
print(ans)
### BUGGY CODE ###

import sys
input = sys.stdin.readline

n = int(input())
h = list(map(int, input().split()))
def triangle(n,h):
    x = 0
    for i in range(0,n-2):
        for j in range(i+1,n-1):
            for k in range(j+1, n):
                if h[i] < h[j] + h[k] and h[j] < h[i] + h[k] and h[k] < h[j] + h[i]:
                    x = x + 1
    return x
print(triangle(n,h))

### FIXED CODE ###

import bisect
N = int(input())
#ソートしておく
L = sorted(list(map(int, input().split())))
ans = 0
 
#短い2辺を総当たりで選択
for i in range(N - 2):
  for j in range(i + 1, N - 1):
    #小さい順に並べた時の成立条件
    # l1 + l2 > l3
    l12 = L[i] + L[j]
    #l2の隣から　l12以下のところまで全部が対象、成立しない場合
    #ans += max(bisect.bisect_left(L, l12) - j - 1, 0)
    ans += bisect.bisect_left(L, l12) - j - 1
print(ans)
### BUGGY CODE ###

n = int(input())
a = [int(x) for x in input().split()]

ans = 0
for i in range(n-1):
    for j in range(n-1-i):
        if a[i] >= 1000000007:
            while a[i] >= 1000000007:
                a[i] = a[i] - 1000000007
            hoge = a[i] * a[i+1+j]
        elif a[i+1+j] >= 1000000007:
            while a[i+1+j] >= 1000000007:
                a[i+1+j] = a[i+1+j] - 1000000007
            hoge = a[i]*a[i+1+j]
        else:
            hoge = a[i] * a[i+1+j] % 1000000007
        while hoge >= 1000000007:
            hoge = hoge - 1000000007
        ans = ans + hoge

ans = ans % 1000000007
print(ans)

### FIXED CODE ###

n = int(input())
a = [int(x) for x in input().split()]

s = sum(a)
ans = 0
mod = 10 ** 9 + 7

for i in range(n-1):
    s -= a[i]
    ans += a[i] * s % mod

ans = ans % mod
print(ans)
### BUGGY CODE ###

N=int(input())
D=list(map(int,input().split()))
M=int(input())
T=list(map(int,input().split()))
TS=set(T)
for i in TS:
    if T.count(i)>D.count(i):
        print('NO')
        exit()

print('YES')

### FIXED CODE ###

import collections

N=int(input())
D=list(map(int,input().split()))
M=int(input())
T=list(map(int,input().split()))

DS=collections.Counter(D)
TS=collections.Counter(T)

for i,k in TS.items():

    if k > DS[i]:
        print('NO')
        exit()

print('YES')