Harryxun/stf_run huggingface dataset:
H, W = map(int, input().split())
s, ans = [], 0
# dpr, dpl, dpd, dpu = {},{},{},{}
#dpr, dpl, dpd, dpu = [0]*W,[0]*W,[0]*H,[0]*H
#dpr, dpl, dpd, dpu = [None]*W,[None]*W,[None]*H,[None]*H
dpr = [[None] * W for _ in range(W)]
dpl = [[None] * W for _ in range(W)]
dpd = [[None] * W for _ in range(W)]
dpu = [[None] * W for _ in range(W)]

for i in range(H):
    s.append(input())

def getCount(h, w):
    if s[h][w] == '#':
        return 0
    rcnt, lcnt, dcnt, ucnt = 0,0,0,0

    # to right
    # if w > 0 and s[h][w-1] == '.' and s[h][w] == '.' and dpr[h][w-1] is not None:
    #     dpr[h][w] = dpr[h][w-1] - 1
    # else:
    for i in range(w+1, W):
        if s[h][i] == '.':
            if dpr[h][i] is not None:
                rcnt += dpr[h][i] + 1
                break
            else:
                rcnt += 1
        else:
            break
    dpr[h][w] = rcnt

    # to left
    for i in reversed(range(w)):
        if s[h][i] == '.':
            if dpl[h][i] is not None:
                lcnt += dpl[h][i] + 1
                break
            else:
                lcnt += 1
        else:
            break
    dpl[h][w] = lcnt

    # to down
    for i in range(h+1, H):
        if s[i][w] == '.':
            if dpr[i][w] is not None:
                dcnt += dpd[i][w] + 1
                break
            else:
                dcnt += 1
        else:
            break
    dpd[h][w] = dcnt

    # to up
    for i in reversed(range(h)):
        if s[i][w] == '.':
            if dpr[i][w] is not None:
                ucnt += dpu[i][w] + 1
                break
            else:
                ucnt += 1
        else:
            break
    dpu[h][w] = ucnt

    return rcnt + lcnt + dcnt + ucnt + 1

for i in reversed(range(H)):
    for j in reversed(range(W)):
        ans = max(ans, getCount(i, j))

print(ans)


### FIXED CODE ###

H, W = map(int, input().split())
s, ans = [], 0
dpr = [[0] * W for _ in range(H)]
dpl = [[0] * W for _ in range(H)]
dpd = [[0] * W for _ in range(H)]
dpu = [[0] * W for _ in range(H)]

for i in range(H):
    s.append(input())

# to right
for i in range(H):
    for j in reversed(range(W)):
        if j == W-1 and s[i][j] == '.':
            dpr[i][j] = 1
        elif s[i][j] == '#':
            dpr[i][j] = 0
        else:
            dpr[i][j] = dpr[i][j+1] + 1

# to left
for i in range(H):
    for j in range(0, W):
        if j == 0 and s[i][j] == '.':
            dpl[i][j] = 1
        elif s[i][j] == '#':
            dpl[i][j] = 0
        else:
            dpl[i][j] = dpl[i][j-1] + 1

# to down
for i in reversed(range(H)):
    for j in range(W):
        if i == H-1 and s[i][j] == '.':
            dpd[i][j] = 1
        elif s[i][j] == '#':
            dpd[i][j] = 0
        else:
            dpd[i][j] = dpd[i+1][j] + 1

# to up
for i in range(0, H):
    for j in range(W):
        if i == 0 and s[i][j] == '.':
            dpu[i][j] = 1
        elif s[i][j] == '#':
            dpu[i][j] = 0
        else:
            dpu[i][j] = dpu[i-1][j] + 1

for i in reversed(range(H)):
    for j in reversed(range(W)):
        cnt = dpr[i][j] + dpl[i][j] + dpd[i][j] + dpu[i][j] - 3
        ans = max(ans, cnt)

print(ans)
n, m = map(int, input().split())
rootList = [-1] * n

def getRoot(x):
    if rootList[x] < 0:
        return x
    return getRoot(rootList[x])


def setSameRoot(x, y):
    x = getRoot(x)
    y = getRoot(y)
    if x != y:
        G[x], G[y] = min(x, y), min(x, y)

for i in range(m):
    s, t = map(int, input().split())
    setSameRoot(s, t)
q = int(input())
for i in range(q):
    s, t = map(int, input().split())
    print("yes" if getRoot(s) == getRoot(t) else "no")

### FIXED CODE ###

n, m = map(int, input().split())
rootList = [-1 for i in range(n)]
 
def getRoot(x):
    r = rootList[x]
    if r < 0:
        rootList[x] = x
    elif r != x:
        rootList[x] = getRoot(r)
    return rootList[x]
 
 
def setSameRoot(x, y):
    x = getRoot(x)
    y = getRoot(y)
    if x != y:
        rootList[x] = rootList[y] = min(x, y)
 
for i in range(m):
    s, t = map(int, input().split())
    setSameRoot(s, t)
q = int(input())
for i in range(q):
    s, t = map(int, input().split())
    print("yes" if getRoot(s) == getRoot(t) else "no")
n=int(input())
count=countA=countB=countAB=0
for i in range(n):
    s=input()
    if "AB" in s:
        count+=1
    if s[-1]=="A":countA+=1
    if s[0]=="B":countB+=1
    if s[-1]=="A" and s[0]=="B":countAB+=1
print(countAB-1 if countA==countB==0 and countAB>0 else min(countA,countB)+countAB)

### FIXED CODE ###

n,k=map(int,input().split())
print(n-k+1)
s = input()
k = int(input())
cnt  = 0
ans  = 0
while True:
    if cnt == len(s)-1:
        print("1")
        exit(1)
    if s[cnt] != '1':
        print(s[cnt])
        exit(1)
    cnt += 1

### FIXED CODE ###

s = input()
k = int(input())
ans  = True
for i in range(k):
    if s[i] != '1':
        print(s[i])
        ans = False
        break
if ans:
    print(1)
N, M, Q = map(int,input().split())
List = [list(map(int, input().split())) for i in range(Q)]
A_full = np.arange(1,M+1)

l_tensu = [0]
for subset in itertools.combinations(A_full, N):
    tensu = 0

    A = list(subset)
    for i in range(Q):
        a = List[i][0] - 1
        b = List[i][1] - 1
        c = List[i][2]
        d = List[i][3]
        if (A[b] - A[a] == c):
            tensu += d
    l_tensu.append(tensu)
   
  
print(max(l_tensu))

### FIXED CODE ###

import itertools
N, M, Q = map(int,input().split())
List = [list(map(int, input().split())) for i in range(Q)]

A_full = [i for i in range(1,M+1)]

l_tensu = 0
for subset in itertools.combinations_with_replacement(A_full, N):
    tensu = 0

    A = list(subset)
    for i in range(Q):
        a = List[i][0] - 1
        b = List[i][1] - 1
        c = List[i][2]
        d = List[i][3]
        if (A[b] - A[a] == c):
            tensu += d
    if(tensu > l_tensu):
        l_tensu = tensu
    
print(l_tensu)
num = list(map(int,input().split()))
if num.count(5) == 2 and num.count(7) == 1:
  print ('YES')
else:
  print('NO)

### FIXED CODE ###

num = list(map(int,input().split()))
if num.count(5) == 2 and num.count(7) == 1:
  print ('YES')
else:
  print('NO')
while 1:
  x, y = raw_input()
  if x == 0 and y ==0:
    break
  elif y > x:
    print "%s %s" & (y,x)
  else:
    print "&s &s" & (x,y)

### FIXED CODE ###

while 1:
  x, y = map(int, raw_input().split())
  if x == 0 and y ==0:
    break
  elif x > y:
    print "%d %d" % (y,x)
  else:
    print "%d %d" % (x,y)
import math
n = int(input())
a = []
a.append(list(map(int, input().split())))
def gcd(x,y):
  if y == 0:
    return x
  return gcd(y, x % y)

pow_2 = 1
exp = 0
while pow_2 < n:
  pow_2 *= 2
  exp += 1

a[0].extend([0]*(pow_2 - n))
for i in range(1, exp):
  a.append([])
  for j in range(pow_2 / math.pow(2, i)):
    a[i].append(gcd(a[i-1][2*j], a[i-1][2*j+1]))

ans = [0]*n
for i in range(n):
  g = 0
  for j in range(0,exp):
    if (i >> j) % 2 == 0:
      bit = 1
    else:
      bit = -1
    g = gcd(a[j][(i>>j)+bit], g)
  ans[i] = g
print(sorted(ans)[n-1])

### FIXED CODE ###

import math
n = int(input())
a = []
a.append(list(map(int, input().split())))
def gcd(x,y):
  if y == 0:
    return x
  return gcd(y, x % y)

pow_2 = 1
exp = 0
while pow_2 < n:
  pow_2 *= 2
  exp += 1

a[0].extend([0]*(pow_2 - n))
for i in range(1, exp):
  a.append([])
  for j in range(int(pow_2 / math.pow(2, i))):
    a[i].append(gcd(a[i-1][2*j], a[i-1][2*j+1]))

ans = [0]*n
for i in range(n):
  g = 0
  for j in range(0,exp):
    if (i >> j) % 2 == 0:
      bit = 1
    else:
      bit = -1
    g = gcd(a[j][(i>>j)+bit], g)
  ans[i] = g
print(sorted(ans)[n-1])
vals = input().split()
dif = vals[0] - vals[1]
 
if dif >= vals[3]:
  print(0)
else:
  print(vals[3] - dif)

### FIXED CODE ###

vals = [int(x) for x in input(). split()]
dif = vals[0] - vals[1]
 
if dif >= vals[2]:
  print(0)
else:
  print(vals[2] - dif)
import  fractions
N = int(input())
A = list(map(int,input().split()))
mod =10**9+7
def lcm(x, y):
    return (x * y) // fractions.gcd(x, y)
  
inv_t = [0]+[1]
for i in range(2,10**6):
  inv_t += [inv_t[mod % i] * (mod - int(mod / i)) % mod]
  
k=1
for a in A:
  k=lcm(k,a)
  
ans=0
for a in A:
  ans+=k*inv_t[a]%mod
print(ans)

### FIXED CODE ###

import  fractions
N = int(input())
A = list(map(int,input().split()))
mod =10**9+7
def lcm(x, y):
    return (x * y) // fractions.gcd(x, y)
  
inv_t = [0]+[1]
for i in range(2,10**6+5):
  inv_t += [inv_t[mod % i] * (mod - int(mod / i)) % mod]
  
k=1
ans=0
for a in A:
  k=lcm(k,a)
  ans+=inv_t[a]%mod
k%=mod

print(ans*k%mod)
N=int(input())
s=[list(map(int,input().split())) for i in range(N)]
A=N
c=0
s.sort(key=lambda x: x[0])

Check=[[s[i][0]-s[i][1],s[i][0]+s[i][1]] for i in range(N)]

for j in range(1,N):

    if Check[j-1][1] > Check[j][0]:
        c=c+1
        Check.remove(Check[j])
        j=j-1
        N=N-1
        if j == N:
            break
    
print(A-c)

### FIXED CODE ###

N=int(input())
s=[list(map(int,input().split())) for i in range(N)]
A=N
c=0
s.sort(key=lambda x: x[0])

Check=[[s[i][0]-s[i][1],s[i][0]+s[i][1]] for i in range(N)]
tmp=Check[0][1]
for j in range(1,N):
    if tmp > Check[j][0]:
        c=c+1
        tmp=min(tmp, Check[j][1])
    else:
        tmp=Check[j][1]
    
print(A-c)
def make_divisors(n):
	divisors = []
	for i in range(1, int(n**0.5)+1):
		if n % i == 0:
			divisors.append(i)
			if i != n // i:
				divisors.append(n//i)
	divisors.sort(reverse=True)
	return divisors

n = int(input())
a = list(map(int,input().split()))
a.append(0)
a.append(0)
a.sort(reverse=True)
ans1 = 0
ans2 = 0
ans3 = 0

result = make_divisors(a[0] - a[2])
for i in range(len(result)):
	next = 0
	for j in range(n):
		if((j != 1) & (a[j] % result[i] != 0)):
			next = 1
			break
	if(next == 0):
		ans1 = result[i]
		break

result = make_divisors(a[0] - a[1])
for i in range(len(result)):
	next = 0
	for j in range(n):
		if((j != 2) & (a[j] % result[i] != 0)):
			next = 1
			break
	if(next == 0):
		ans2 = result[i]
		break

result = make_divisors(a[1] - a[2])
for i in range(len(result)):
	next = 0
	for j in range(n):
		if((j != 0) & (a[j] % result[i] != 0)):
			next = 1
			break
	if(next == 0):
		ans3 = result[i]
		break
max = ans1
if(ans2 > max):
	max = ans2
if(ans3 > max):
	max = ans3
print(max)

### FIXED CODE ###

A, B, T = map(int, input().split())
tmp = (T+0.5) / A
print(int(tmp)*B)
N,M =map(int,input().split())
if M>0:
    a = [0]*M
    for i in range(M):
        a[i] = int(input())

ans = int(1)

A = [0]*(M+1)
if M!=0:
    A[0] = a[0] - 1
    A[M] = N - a[M-1]-1
    for i in range(M-1):
        A[i+1] = a[i+1] - a[i]- 2
        if A[i+1]==-1:
            ans = 0


SA =[0]*N
SA[0] = int(1)
SA[1] = int(1)
if N>2:
    for i in range(N - 2):
        SA[i + 2] = SA[i + 1] + SA[i]
        SA[i + 2] = SA[i + 2] % 1000000007

for i in range(M+1):
    if A[i]>=0:
        ans *= SA[A[i]]
        ans = ans%1000000007


print(ans)



### FIXED CODE ###

def examC():
    N, M = LI()
    A = [I() for _ in range(M)]
    A.append(N+1)
    fib = [1]*(N+2)
    for i in range(1,N):
        fib[i+2] = fib[i+1] + fib[i]
    fib[0] = 0
#    print(fib)
    ans = fib[A[0]]%mod
    for i in range(M):
        ans *= fib[A[i+1]-A[i]-1]
        ans %=mod
    print(ans)
    return

def examD():
    return

import sys,copy,bisect,itertools,heapq,math
from heapq import heappop,heappush,heapify
from collections import Counter,defaultdict,deque
def I(): return int(sys.stdin.readline())
def LI(): return list(map(int,sys.stdin.readline().split()))
def LSI(): return list(map(str,sys.stdin.readline().split()))
def LS(): return sys.stdin.readline().split()
def SI(): return sys.stdin.readline().strip()
global mod,inf
mod = 10**9 + 7
inf = float('inf')

if __name__ == '__main__':
    examC()
import numpy as np
n = int(input())
a = list(map(int,input().split()))
mod = 10**9+7
ans = 0
now = 1

sum = np.zeros(60,dtype=int)
for i in a:
    ii = i
    for j in range(60):
        if ii%2 == 1:
            sum[j] += 1
        ii //= 2
        if ii == 0:
            break
    sum += aa

for i in range(60):
    k = (sum[i]*(n-sum[i]))%mod
    ans = (ans+(k*now)%mod)%mod
    now = (now*2)%mod

print(ans)

### FIXED CODE ###

#https://atcoder.jp/contests/abc147/submissions/12994515を見た

import numpy as np
n = int(input())
a = np.array(input().split(),dtype=int)
mod = 10**9+7
m2 = [1 for i in range(60)]
for i in range(1,60):
    m2[i] = (m2[i-1]*2)%mod

ans = 0
for i in range(60):
    ni = np.count_nonzero(a&1)
    ans = (ans+ni*(n-ni)%mod*m2[i])%mod
    a >>= 1

print(ans)
def main():
  import sys
  input = sys.stdin.readline
  import bisect

  N, K = [int(x) for x in input().split()]
  A = [int(x) for x in input().split()]

  A_m = [abs(int(x)) for x in A if x < 0]
  A_m.sort()
  N_m = len(A_m)

  A_p = [int(x) for x in A if x > 0]
  A_p.sort()
  N_p = len(A_p)

  M = N_m * N_p
  P = (1 / 2) * (N_m) * (N_m - 1) + (1 / 2) * (N_p) * (N_p - 1)
  Z = (1 / 2) * N * (N - 1) - (M + P)

  if M < K <= M + Z:
      print(0)
      sys.exit()

  def cnt_M(x):
      cnt = 0
      for i in A_m:
          cnt += bisect.bisect_right(A_p, x // i)
      return cnt >= (M - K + 1)

  if K <= M:
      left = -1 - 10**18
      right = 1 + 10**18 
      while right - left > 1:
          mid = (left + right) // 2
          if cnt_M(mid):
              right = mid
          else:
              left = mid
      print(-right)
      sys.exit()
  K -= (M + Z)
  def cnt_P(x):
      cnt = 0
      ng = 0
      for i in A_m:
          cnt += bisect.bisect_right(A_m, x // i)
          if i ** 2 <= x:
              ng += 1
      for j in A_p:
          cnt += bisect.bisect_right(A_p, x // j)
          if j ** 2 <= x:
              ng += 1
      return (cnt - ng) // 2 >= K

  left = -1 - 10**18
  right = 1 + 10**18
  while right - left > 1:
      mid = (left + right) // 2
      if cnt_P(mid):
         right = mid
      else:
          left = mid

  print(right)
main()

### FIXED CODE ###

import sys
input = sys.stdin.readline

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

from collections import Counter

c = Counter(A)

for i in c.values():
    if i == 2:
        print("Yes")
        sys.exit()
print("No")
#!/usr/bin/env python3
import sys
from collections import defaultdict
INF = float("inf")

MOD = 1000000007  # type: int


class Graph(object):
    def __init__(self, N):
        self.N = N
        self.E = defaultdict(list)

    def add_edge(self, f, t, w=1):
        self.E[f].append((t, w))
        self.E[t].append((f, w))


def solve(N: int, x: "List[int]", y: "List[int]"):

    g = Graph(N)
    for xx, yy in zip(x, y):
        g.add_edge(xx-1, yy-1)

    white = [-1]*N
    black = [-1]*N

    def rec(node, pre):
        if white[node] > 0:
            return white[node], black[node]

        # nodeを黒と塗る場合
        bbb = 1
        www = 1
        for t, _ in g.E[node]:
            if t != pre:
                w, b = rec(t, node)
                bbb *= w
                bbb %= MOD
                www *= (w+b) % MOD
                www %= MOD
        black[node] = bbb % MOD
        white[node] = www % MOD
        return white[node], black[node]

    w, b = rec(0, -1)
    print((w+b) % MOD)
    return


def main():

    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    x = [int()] * (N - 1)  # type: "List[int]"
    y = [int()] * (N - 1)  # type: "List[int]"
    for i in range(N - 1):
        x[i] = int(next(tokens))
        y[i] = int(next(tokens))
    solve(N, x, y)


if __name__ == '__main__':
    main()


### FIXED CODE ###

#!/usr/bin/env python3
import sys
from collections import defaultdict
sys.setrecursionlimit(10**8)
INF = float("inf")

MOD = 1000000007  # type: int


class Graph(object):
    def __init__(self, N):
        self.N = N
        self.E = defaultdict(list)

    def add_edge(self, f, t, w=1):
        self.E[f].append((t, w))
        self.E[t].append((f, w))


def solve(N: int, x: "List[int]", y: "List[int]"):

    g = Graph(N)
    for xx, yy in zip(x, y):
        g.add_edge(xx-1, yy-1)

    white = [-1]*N
    black = [-1]*N

    def rec(node, pre):
        if white[node] > 0:
            return white[node], black[node]

        # nodeを黒と塗る場合
        bbb = 1
        www = 1
        for t, _ in g.E[node]:
            if t != pre:
                w, b = rec(t, node)
                bbb *= w
                bbb %= MOD
                www *= (w+b) % MOD
                www %= MOD
        black[node] = bbb % MOD
        white[node] = www % MOD
        return white[node], black[node]

    w, b = rec(0, -1)
    print((w+b) % MOD)
    return


def main():

    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    N = int(next(tokens))  # type: int
    x = [int()] * (N - 1)  # type: "List[int]"
    y = [int()] * (N - 1)  # type: "List[int]"
    for i in range(N - 1):
        x[i] = int(next(tokens))
        y[i] = int(next(tokens))
    solve(N, x, y)


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



### FIXED CODE ###

a, b= map(int, input().split())
print (a*b)
N = int(input())
As = list(map(int, input().split()))

hs = []
ls = []

i = 0
if As[1] > As[0]:
  ls.append((As[0],0))
  f = 1
elif As[1] < As[0]:
  hs.append((As[0],0))
  f = 0
else:
  fl = 1
  for j in range(2,N):
    if As[j] > As[0]:
      ls.append((As[0],0))
      f = 1
      i = j
      fl = 0
      break
    elif As[j] < As[0]:
      hs.append((As[0],0))
      f = 0
      i = j
      fl = 0
      break
  if fl == 1:
    print(1000)
    exit()
  
while i < N-1:
  if f == 1 and As[i] > As[i+1]:
    hs.append((As[i],i))
    f = 0
  elif f == 0 and As[i] < As[i+1]:
    ls.append((As[i],i))
    f = 1
  i += 1
    
if As[N-2] < As[N-1]:
  hs.append((As[N-1],N-1))
elif As[N-2] > As[N-1]:
  ls.append((As[N-1],N-1))

if len(ls) == 1 and len(hs) == 1 and ls[0][1] > hs[0][1]:
  print(1000)
  exit()
if ls[0][1] > hs[0][1]:
  del hs[0]
if hs[-1][1] < ls[-1][1]:
  del ls[-1]
  
memo = [[[0]*2 for _ in range(len(ls)+1)]  for _ in range(2)]
memo[0][0][0] = 1000
memo[0][0][1] = 0
memo[1][0][0] = 1000
memo[1][0][1] = 0

for i in range(1,len(ls)+1):
  a = memo[1][i-1][0] // ls[i-1][0]
  if a > memo[0][i-1][1]:
    memo[0][i][0] = memo[1][i-1][0]-a*ls[i-1][0]
    memo[0][i][1] = a
  else:
    memo[0][i][0] = memo[1][i-1][0]
    memo[0][i][1] = 0
  b = memo[0][i][1]*hs[i-1][0] + memo[0][i][0]
  if b > memo[1][i-1][0]:
    memo[1][i][0] = b
    memo[1][i][1] = 0
  else:
    memo[1][i][0] = memo[0][i][0]
    memo[1][i][1] = memo[0][i][1]
    
print(memo[1][-1][0])

### FIXED CODE ###

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

rlt = 1000
for i in range(N-1):
  if As[i+1] > As[i]:
    rlt = (As[i+1]-As[i])*(rlt//As[i]) + rlt
    
print(rlt)
ln=int(input())
st=input()
op=''
if len(st)<=ln:
  print(st)
else:
  ln1=len(st)-ln
  for i in range(ln):
    op=op+'.'
  print(st[:ln]+op
    

### FIXED CODE ###

ln=int(input())
s=input()
l=len(s)
if ln<l:
  print(s[:ln]+'...')

elif ln>=l:
  print(s)
import sys
import numpy as np
from math import ceil as C, floor as F, sqrt, gcd as G
from collections import defaultdict as D, Counter as CNT
from functools import reduce as R
import heapq as HQ

class Heap:
  def __init__(self, data, reverse=False):
    self.reverse = -1 if reverse else 1
    self.data = [self.reverse * d for d in data]
    HQ.heapify(self.data)
  def push(self, x): return HQ.heappush(self.data, self.reverse * x)
  def pop(self): return self.reverse * HQ.heappop(self.data) 

ALP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
alp = 'abcdefghijklmnopqrstuvwxyz'
def _X(): return sys.stdin.readline().rstrip().split(' ')
def _S(ss): return tuple(ss) if len(ss) > 1 else ss[0]
def S(): return _S(_X())
def Ss(): return list(S())
def _I(ss): return tuple([int(s) for s in ss]) if isinstance(ss, tuple) else int(ss)
def I(): return _I(S())
def _Is(ss): return list(ss) if isinstance(ss, tuple) else [ss]
def Is(): return _Is(I())

n, k = I()
# steps = set()
steps = [0] * (n+1)
mod = 998244353

for _ in range(k):
    l, r = I()
    for i in range(l, r+1):
        steps[i] = 1
    # steps.update([i for i in range(l, r+1)])

ans = 0
# heap = Heap([1])
# seen = set([1])
# cache = D(int)
# cache[1] = 1
cache = np.array([0] * (n+1))
cache[1] = 1

# def go(i):
for i in range(1, n):
    if cache[i] == 0:
        continue
    now = np.array([0] * i + steps[:-i])
    cache = cache + (cache[i] * now)
    # for step in steps:
        # print(heap.data, seen, cache)
        # t = i + step
        # if t <= n:
            # cache[t] += cache[i]
            # cache[t] %= mod

    
print(cache[n] % mod)
    




### FIXED CODE ###

import sys
from math import ceil as C, floor as F, sqrt, gcd as G
from collections import defaultdict as D, Counter as CNT
from functools import reduce as R
import heapq as HQ

class Heap:
  def __init__(self, data, reverse=False):
    self.reverse = -1 if reverse else 1
    self.data = [self.reverse * d for d in data]
    HQ.heapify(self.data)
  def push(self, x): return HQ.heappush(self.data, self.reverse * x)
  def pop(self): return self.reverse * HQ.heappop(self.data) 

ALP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
alp = 'abcdefghijklmnopqrstuvwxyz'
def _X(): return sys.stdin.readline().rstrip().split(' ')
def _S(ss): return tuple(ss) if len(ss) > 1 else ss[0]
def S(): return _S(_X())
def Ss(): return list(S())
def _I(ss): return tuple([int(s) for s in ss]) if isinstance(ss, tuple) else int(ss)
def I(): return _I(S())
def _Is(ss): return list(ss) if isinstance(ss, tuple) else [ss]
def Is(): return _Is(I())

word = S()
word += 'es' if word[-1] == 's' else 's'
print(word)
N=int(input())
S=input().split()
T=list(int(S[i]) for i in range(len(S)))
B=input().split()
A=list(int(B[i]) for i in range(len(B)))
a=1
if max(T)!=max(A):
    print(0)
else:
    for i in range(1,N-1):
        
        if T[i]==T[i-1] and A[N-i]==A[N-i+1]:
            a*=min(T[i],A[N-i])
        if T[i]>T[i-1] or A[N-i]>A[N-i+1]:
            a*=1
    print(a%(10**9+7))

### FIXED CODE ###

N=int(input())
T = list(map(int, input().split()))
A = list(map(int, input().split()))
a = 1
if T[0]>A[0] or A[-1]>T[-1] or T[-1]!=A[0]:
    a*=0
for i in range(1,N-1):
    if T[i-1]!=T[i]:
        if T[i]>A[i]:
            a*=0
            break
        else:
            a*=1
            continue
    if A[i]!=A[i+1]:
        if T[i]<A[i]:
            a*=0
            break
        else:
            a*=1
            continue
    a=(a*min(T[i],A[i]))%(10**9+7)
print(a)
from typing import List

def is_odd(num: int) -> bool:
    return num % 2 == 0

def odd_in_list(num_list: List[int]) -> bool:
    for num in num_list:
        if is_odd(num):
            return True
    
    else:
        return False

def half(num: int) -> int:
    return num / 2

def shift_only(num_list, counter):
    if odd_in_list(num_list):
        return counter
    else:
        return shift_only(list(map(half, num_list)), counter += 1)


n = int(input())

a_list = list(map(int, input().split()))

counter = 0

result = shift_only(a_list, counter)
print(result)

### FIXED CODE ###



def is_odd(num):
    return num % 2 != 0

def odd_in_list(num_list):
    for num in num_list:
        if is_odd(num):
            return True
    
    return False

def half(num):
    return num / 2

def shift_only(num_list, counter):
    if odd_in_list(num_list):
        print('its over')
        return counter
    else:
        new_list = list(map(half, num_list))
        counter += 1
        print('continue', num_list, counter)
        return shift_only(new_list, counter)


n = int(input())

a_list = list(map(int, input().split()))


counter = 0
flag = True

while flag:
    for i in range(n):
        # print(a_list[i])
        if a_list[i] % 2 != 0:
            # print('is odd')
            flag = False
            break
        else:
            continue
    
    if not flag:
        break
    
    for i in range(n):
        a_list[i] /= 2
    counter += 1

    # print('-----loop------')
    # print(a_list, counter)

print(counter)