Harryxun/stf_run huggingface dataset:
a = list(map(int, input().split()))
#print(a)
b=[0]*(a[1]+5000)
c=[0]*(a[1]+1+5000)
b[0]=int(input())
c[0]=b[0]-0
for x in range(a[1]-1):
    b[x+1]=int(input())
    c[x+1]=b[x+1]-b[x]-1
c[-1]=a[0]-b[-1]
max = 0
min = a[0]+100
for x in c:
    if x>max:
        max=x
    if x<min:
        min=x
        
#print(c)
#print(max," ",min)
if min==0:
    print(0)
else:
    num=[0]*(max+5000)
    for x in range(max):
        if x==0:
            num[0]=1
        elif x==1:
            num[1]=1
        else:
            num[x]=num[x-1]+num[x-2]
        #print("num[",x,"]=",num[x])
        
    answer=1
    for x in c:
        answer *=num[x-1]
        if answer==0:
            print(0)
            break
        else:
            answer%=1000000007
    print(answer)

### FIXED CODE ###

n,m = list(map(int, input().split()))
a=[]
a.append(-1)
for x in range(m):
  tmp=int(input())
  a.append(tmp)
a.append(n+1)
diff = []
for x in range(len(a)-1):
  diff.append(a[x+1]-a[x])
              
large = 0
small = 123456789012345
for x in diff:
  large=max(large,x)
  small=min(small,x)

num=[0,0,1]
for _ in range(large):
  num.append((num[-1]+num[-2])%1000000007)
    
answer=1
for x in diff:
  #print(x,num[x])
  answer *=num[x]
  answer%=1000000007
print(answer)
Cn,k = map(int,input().split())
h = []
for i in range(n):
    h.append(int(input()))
h.sort()
h_max = 0
h_min = 0
r = 0
ans = []
#print(h)
for i in range(r,n):
    h_max = max(h[r:k+r])
    #print(h[r:k])
    h_min = min(h[r:k+r])
    if n -r < k: 
        break
    ans.append(h_max - h_min)
    r += 1
print(min(ans))


### FIXED CODE ###

n,k = map(int,input().split())
h = []
for i in range(n):
    h.append(int(input()))
h.sort()
h_max = 0
h_min = 0
r = 0
ans = []
#print(h)
for i in range(r,n-k+1):
    if n - r < k: 
        break
    h_max = h[r+k-1]
    #print(h[r:k])
    h_min = h[r]
    ans.append(h_max - h_min)
    r += 1
print(min(ans))
n=int(input())
h=list(map(int,input().split()))
h.reverse()
i=0
for i in range(n):
  if h[i]<h[i+1]:
    i+=1
  
print(i)

### FIXED CODE ###

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

ans = 0
c = 0
for i in range(n-1):
    if h[i] >= h[i+1]:
        c += 1
    else:
        ans = max(ans, c)
        c = 0
print(max(ans, c))
n, m = list(map(int, input().split()))
x = list(map(int, input().split()))
y = list(map(int, input().split()))

sum_x = 0
for i in range(0, n):
    tmp_x = x[i]
    l_x = list(filter(lambda ele: ele > 0, (map(lambda ele: ele - tmp_x, x))))
    sum_x += sum(l_x)

sum_y = 0
for i in range(0, m):
    tmp_y = y[i]
    l_y = list(filter(lambda ele: ele > 0, (map(lambda ele: ele - tmp_y, y))))
    sum_y += sum(l_y)

ans = sum_x * sum_y

divide_num = pow(10, 9) + 7
print(ans % divide_num)


### FIXED CODE ###

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

if b - a == c - b:
    print("YES")
else:
    print("NO")
n = int(input())
a = []
for _ in range(0, n):
    a.append(int(input()))
first = max(a)
second_1 = sorted(a)
second = second_1[-2]
for i in range(0, n):
    if a[i] == first:
        print(second)
    else:
        print(first)

### FIXED CODE ###

n = int(input())
print(3*n*n)
import sys
input = sys.stdin.readline

c = input()
ans = ord(c)+1
print(chr(ans))

### FIXED CODE ###

c = input()
ans = ord(c)+1
print(chr(ans))
a=input()
b=input()

print(int(a)*int(b)," ",int(a)*2+int(b)*2)

### FIXED CODE ###

i = input()
a,b = list(map(int,i.split()))

print(a*b,2*a+2*b)
# coding: utf-8

# In[ ]:

N = int(input())
V = map(int, input().split())
C = map(int, input().split())


# In[ ]:

import numpy as np


# In[ ]:

V = np.array(V)
C = np.array(C)


# In[ ]:

bene = V-C
print(np.sum(bene[bene>0]))



### FIXED CODE ###


# coding: utf-8

# In[1]:

N = int(input())
V = list(map(int, input().split()))
C = list(map(int, input().split()))


# In[2]:

import numpy as np


# In[3]:

V = np.array(V)
C = np.array(C)


# In[4]:

bene = V-C
print(np.sum(bene[bene>0]))


# In[ ]:
x = str(input())
y = str(input())
z = x.reversed()
w = y.reversed()
if x==w and y==z:
  print("YES")
else:
  print("NO")


### FIXED CODE ###

x = str(input())
y = str(input())
if x==y[::-1]:
  print("YES")
else:
  print("NO")
#バケット法による解
N = int(input())
dlist = []
for i in range(N):
    dlist.append(int(input()))
dbacket = [0]*100
for d in dlist:
    dbacket[d] += 1
answer = 0
for db in dbacket:
    if db > 0:
        answer += 1
print(answer)

### FIXED CODE ###

N = int(input())
dlist = []
for i in range(N):
    dlist.append(int(input()))
dset = set(dlist)
print(len(dset))
n = len(S)
ans_list = []
for i in range(n):
    for j in range(i + 1, n):
        T = S[i: j + 1]
        U = T.replace("A","").replace("C","").replace("G","").replace("T","")
        if U == "":
            ans_list.append(len(T))
print(max(ans_list))

### FIXED CODE ###

S = input()
S = S.replace('A', '*').replace('T', '*').replace('C', '*').replace('G', '*')

ans, count = 0, 0
for s in S:
    if s == '*':
        count += 1
        ans = max(ans, count)
    else:
        count = 0

print(ans)
n,m = map(int,input().split())
num = [-1]*n
for i in range(m):
  s,c = map(int,input().split())
  if n!=1 and s==1 and c==0:
    print(-1)
    exit()
  if num[s-1]==-1: num[s-1] = c
  elif num[s-1]!=c:
    print(-1)
    eixt()
for i in range(n):
  if num[i] = -1: num[i] = 0
if num[0] = 0 and len(num)!=1: num[0] = 1
print(int(''.join(num)))


### FIXED CODE ###

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

num = 0
dic = {}

for i in range(m):
  s,c = map(int, input().split())
  if n!=1 and s==1 and c==0: 
    print(-1)
    exit()
  if s not in dic:
    dic[s] = c
    num = num + c*(10**(n-s))
  elif c!=dic[s]:
    print(-1)
    exit()

if 1 not in dic and n>1:
  num = num + 10**(n-1)

print(num)
h, w, m = (int(x) for x in input().split())
bomb = [[0]*w for i in range(h)]
bomb_h = [0]*h
bomb_w = [0]*w
for i in range(m):
    hm, wm = (int(x) for x in input().split())
    hm-=1
    wm-=1
    bomb[hm][wm] = 1
    bomb_h[hm]+=1
    bomb_w[wm]+=1
h_kouho = []
w_kouho = []
h_max = max(bomb_h)
w_max = max(bomb_w)
for i in range(h):
    if bomb_h[i]==h_max:
        h_kouho.append(i)
for i in range(w):
    if bomb_w[i]==w_max:
        w_kouho.append(i)
boo = False
for i in h_kouho:
    for j in w_kouho:
        if bomb[i][j]==0:
            break
            boo=True
    else:
        continue
    break
if boo:
    print(h_max+w_max)
else:
    print(h_max+w_max-1) 


### FIXED CODE ###

h, w, m = (int(x) for x in input().split())
bomb = {}
bomb_h = [0]*h
bomb_w = [0]*w
for i in range(m):
    hm, wm = (int(x) for x in input().split())
    hm-=1
    wm-=1
    bomb[(hm, wm)] = 0
    bomb_h[hm]+=1
    bomb_w[wm]+=1
h_kouho = []
w_kouho = []
h_max = max(bomb_h)
w_max = max(bomb_w)
for i in range(h):
    if bomb_h[i]==h_max:
        h_kouho.append(i)
for i in range(w):
    if bomb_w[i]==w_max:
        w_kouho.append(i)
boo = False
for i in h_kouho:
    for j in w_kouho:
        if (i, j) not in bomb:
            boo=True
            break
    else:
        continue
    break
if boo:
    print(h_max+w_max)
else:
    print(h_max+w_max-1)
import sys

readline = sys.stdin.readline
readall = sys.stdin.read
ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))
prn = lambda x: print(*x, sep='\n')

def solve():
    n, k, s, t = nm()
    a = [x ^ s for x in nl() if x & s == s and x | t == t]
    n = len(a)
    t ^= s
    s = 0

    C = [[0]*(n+1) for i in range(n+1)]
    for i in range(n+1):
        for j in range(i+1):
            if j == 0:
                C[i][j] = 1
            elif i > 0:
                C[i][j] = C[i-1][j] + C[i-1][j-1]
    D = [0]*(n+1)
    for i in range(n+1):
        for j in range(1, k+1):
            D[i] += C[i][j]
    for i in range(n, 0, -1):
        D[i] -= D[i-1]
    l = list()
    for i in range(20, -1, -1):
        if t & (1 << i):
            l.append(i)
    p = len(l)
    na = list()
    for x in a:
        v = 0
        for i in l:
            v = v << 1 | x >> i & 1
        na.append(v)
    pc = [0]*(1 << p)
    for bit in range(1 << p):
        for i in range(p):
            if not bit & (1 << i):
                pc[bit | (1 << i)] = pc[bit] + 1
    l = [0]*(1 << p)
    ans = 0
    for bit in range(1 << p):
        cur = 0
        for x in na:
            l[bit&x] += 1
            cur += D[l[bit&x]]
        for x in na:
            l[bit&x] -= 1
        if pc[bit] & 1:
            ans -= cur
        else:
            ans += cur
    print(ans)
    return

solve()


### FIXED CODE ###

import sys

readline = sys.stdin.readline
readall = sys.stdin.read
ns = lambda: readline().rstrip()
ni = lambda: int(readline().rstrip())
nm = lambda: map(int, readline().split())
nl = lambda: list(map(int, readline().split()))
prn = lambda x: print(*x, sep='\n')

def popcount(x):
    x = x - ((x >> 1) & 0x55555555)
    x = (x & 0x33333333) + ((x >> 2) & 0x33333333)
    x = (x + (x >> 4)) & 0x0f0f0f0f
    x = x + (x >> 8)
    x = x + (x >> 16)
    return x & 0x0000007f


def solve():
    n, k, s, t = nm()
    a = [x ^ s for x in nl() if x & s == s and x | t == t]
    n = len(a)
    t ^= s
    s = 0
    C = [[0]*(n+1) for i in range(n+1)]
    for i in range(n+1):
        for j in range(i+1):
            if j == 0:
                C[i][j] = 1
            elif i > 0:
                C[i][j] = C[i-1][j] + C[i-1][j-1]
    D = [0]*(n+1)
    for i in range(n+1):
        for j in range(1, min(k, n)+1):
            D[i] += C[i][j]
    for i in range(n, 0, -1):
        D[i] -= D[i-1]
    l = list()
    for i in range(20, -1, -1):
        if t & (1 << i):
            l.append(i)
    p = len(l)
    na = list()
    for x in a:
        v = 0
        for i in l:
            v = v << 1 | x >> i & 1
        na.append(v)
    pc = [popcount(i) for i in range(1 << p)]
    l = [0]*(1 << p)
    ans = 0
    for bit in range(1 << p):
        cur = 0
        for x in na:
            l[bit&x] += 1
            cur += D[l[bit&x]]
        for x in na:
            l[bit&x] -= 1
        if pc[bit] & 1:
            ans -= cur
        else:
            ans += cur
    print(ans)
    return

solve()
a,b = int(input())

if a + b >= 10:
  print("error")
else:
  print(a+b)

### FIXED CODE ###

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

if a + b >= 10:
  print("error")
else:
  print(a+b)
N = int(input())
P = tuple(map(int,input().split()))
Q = tuple(map(int,input().split()))
ls = [i for i in range(1,N+1)]
A = list(permutations(ls))
 
print(abs(A.index(P) - A.index(Q)))

### FIXED CODE ###

import itertools
N = int(input())
P = tuple(map(int,input().split()))
Q = tuple(map(int,input().split()))
ls = [i for i in range(1,N+1)]
A = list(itertools.permutations(ls))
 
print(abs(A.index(P) - A.index(Q)))
n = int(input())
list=[0,'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
word = []
i = 12
while i>=0:
  x = n//(26**i)
  word.append(x)
  n = n-x*26**i
  i -= 1

while True:
  word = int(''.join(word)).split()
  if 0 in word:
    p = word.index(0)
    word[p-1] = word[p-1]-1 
    word[p] = 26
  else:
    break

h=''
for i in range(len(word)):
  h += list[word[i]]
print(h)

### FIXED CODE ###

list = [0,'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
num_list =[0]
for i in range(1,15):
    num_list.append(26**i+num_list[i-1])

n = int(input())
i = 0
while True:
    if num_list[i] >= n:
        break
    else:
        i +=1


word = []
for j in range(i,0,-1):
    x = n//26**(j-1)
    if x==27:
        word.append(26)
        n = n -26**(j-1)*(n//26**(j-1))+26**(j-1)
    else:
        word.append(x)
        n = n -26**(j-1)*(n//26**(j-1))
while True:
    if 0 in word:
        p = word.index(0)
        word[p-1] = word[p-1]-1
        word[p] = 26
    else:
        break
h =''
for k in range(len(word)):
    h+=str(list[word[k]])
print(h)
import heapq
def SME():
    A = [[x,i] for i,x in enumerate(Whole)]
    heapq.heapify(A)
    C = set([i for i in range(N)])
    D = set([])
    parameter = 0.997
    count = 0
    ANS = [None] * N
    for j in range(N) :
        a = heapq.heappop(A)
        for i in ANS[a[1]:a[1]+L]:
            if ANS[i] : continue
            else :
                ANS[i] = a[0]
                D.add(idx)
                count += 1
        if count > N * parameter : break
    for i in C.difference(D):
        if i < L : ANS[i] = min(Whole[:i+1])
        else : ANS[i] = min(Whole[i+1-L:i+1])
    return ANS

[N,L] = [int(x) for x in input().split()]
Whole = [int(x) for x in input().split()]
ANS = SME()
for i in ANS[L-1:-1]:print(i, end=" ")
print(ANS[-1])

### FIXED CODE ###

def ascend(a,b):
    mini = min(A[a:a+L])
    ans[a] = mini
    for i in range(a+1,b):
        if A[i+L-1] <= mini : mini = A[i+L-1]
        elif A[i-1] == mini : mini = min(A[i:i+L])
        ans[i] = mini

def descend(a,b):
    mini = min(A[b-1:b+L-1])
    ans[b-1] = mini
    for i in range(b-2,a-1,-1):
        if A[i] <= mini : mini = A[i]
        elif A[i+L] == mini: mini = min(A[i:i+L])
        ans[i] = mini
    
[N,L] = [int(x) for x in input().split()]
A = [int(x) for x in input().split()]
ans = [None]*(N-L+1)
count = 0;
if N > 10 ** 4:
    for i in range(100):
        if A[i+1] > A[i] : count += 1
    if count > 80 : descend(0, N-L+1)
    else : ascend(0,N-L+1)
else :
    ascend(0, N-L+1)
for i in ans[:-1] : print(i, end=" ")
print(ans[-1])
N = int(input())
A = input().split()
for i in range(N):
  count = 0
  for j in range(N-1):
	if i+1 == int(A[j]):
	  count += 1
  print(count)


### FIXED CODE ###

N = int(input())
A =[int(n) for n in input().split()]
b = [0]*N
for i in A:
  b[i-1]+=1
for i in range(N):
  print(b[i])
a, b = map(int, input().split())

if (a*b)% == 0:
  print("Even")
  else:
    print("Odd")

### FIXED CODE ###

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

if (a*b % 2 == 0):
  print('Even')
else:
  print('Odd')
S = input()
l = len(S)
Q = S.count('?')
ans = 0
for i in range(l-2):
    for j in range(l-i-2):
        for k in range(l-i-j-2):
            d = 3**Q
            s1 = S[i]; s2 = S[i+j+1]; s3 = S[i+j+k+2]
            if s1 == 'A' or s1 == '?':
                if s1 == '?':
                    d /= 3
                if s2 == 'B' or s2 == '?':
                    if s2 == '?':
                        d /= 3
                    if s3 == 'C' or s3 == '?':
                        if s3 == '?':
                            d /= 3
                        d %= 10**9 + 7
                        ans += d
                        ans = ans%(10**9+7)
print(int(ans))

### FIXED CODE ###

S = input()
memo = [[0,0,0,0] for i in range(len(S))]
Q = 0
memo[0][0] = 1
if S[0] == 'A':
  memo[0][1] = 1
elif S[0] == '?':
  memo[0][0] = 3
  memo[0][1] = 1
l = 1
while l < len(S):
  s = S[l]
  if s == 'A':
    memo[l][0] = memo[l-1][0]
    memo[l][1] = memo[l-1][1] + memo[l-1][0]
    memo[l][2] = memo[l-1][2]
    memo[l][3] = memo[l-1][3]
  elif s == 'B':
    memo[l][0] = memo[l-1][0]
    memo[l][1] = memo[l-1][1]
    memo[l][2] = memo[l-1][2] + memo[l-1][1]
    memo[l][3] = memo[l-1][3]
  elif s == 'C':
    memo[l][0] = memo[l-1][0]
    memo[l][1] = memo[l-1][1]
    memo[l][2] = memo[l-1][2]
    memo[l][3] = memo[l-1][3] + memo[l-1][2]
  else:
    memo[l][0] = memo[l-1][0]*3
    memo[l][1] = memo[l-1][1]*3 + memo[l-1][0]
    memo[l][2] = memo[l-1][2]*3 + memo[l-1][1]
    memo[l][3] = memo[l-1][3]*3 + memo[l-1][2]
    Q += 1
  memo[l] = [i%(10**9+7) for i in memo[l]]
  l += 1
print(int(memo[l-1][3]))
s = input()
l = len(s)

s1 = [ ((-1)^i + 1)/2 for i in range(l)]
s2 = [ ((-1)^(i+1) + 1)/2 for i in range(l)]

m = 0
n = 0
for i in range(l):
  m += (s[i] - s1[i])^2
  n += (s[i] - s2[i])^2

print(min(m,n))

### FIXED CODE ###

s = input()
l = len(s)

s1 = [ ((-1)**i + 1)//2 for i in range(l)]
s2 = [ ((-1)**(i+1) + 1)//2 for i in range(l)]

m = 0
n = 0
for i in range(l):
  m += (int(s[i]) - s1[i])**2
  n += (int(s[i]) - s2[i])**2

print(min([m,n]))
N, A, B = map(int, input().split())
mo = 10 ** 9 + 7
def hanaya(n, x):
    if x == 1:
        return n
    else:
        return ((int((hanaya(n, x-1))*((n-x+1)/x))%mo))

ans = (pow(2, N, mo) - 1 - hanaya(N, A)- hanaya(N, B)) % mo
print(int(ans))

### FIXED CODE ###

N, A, B = map(int, input().split())
mo = 1000000007
A_val = 1
for i in range(A):
    A_val = ((A_val * (N - i) * pow(i+1, mo-2, mo))) % mo
B_val = 1
for i in range(B):
    B_val = ((B_val * (N - i) * pow(i+1, mo-2, mo))) % mo
    
ans = (pow(2, N, mo) - 1 - A_val - B_val) % mo
print(ans)
b = input()
if b == 'A':
  b = 'T'
elif b == 'T':
  b = 'A'
elif b == 'G':
  b = 'C'  
else b == 'C':
  b = 'G'  

print(b)

### FIXED CODE ###

b = input()
if b == 'A':
    b = 'T'
elif b == 'T':
    b = 'A'
elif b == 'G':
    b = 'C'  
else:
    b = 'G'  
 
print(b)
h,a=map(int,input().split(" "))

if h%a==0:
  print(h/a)
else:
  primt(h//a+1)

### FIXED CODE ###

h,a = map(int,input().split())
n = -((-h)//a)
print(n)
n1 = int(input())
l1 = [int(x) for x in input().split()]
l2 = [""] * 8

for i, v in enumerate(l1):
  l2[v -1] = i + 1

ans = ""
for i in l2:
  ans = ans + str(i) + " "
print(ans[:-1])

### FIXED CODE ###

n1 = int(input())
l1 = [int(x) for x in input().split()]
l2 = [""] * n1

for i, v in enumerate(l1):
  l2[v -1] = i + 1

l2 = map(str,l2)
ans = " ".join(l2)
print(ans)
import numpy as np
N = int(input())
tmp = np.array(range(1, N, 1))
print(sum(tmp))

### FIXED CODE ###

N = int(input())
if N % 2 == 0:
    print((1+N)*(N//2)-N)
else:
    print((1+N-1)*(N//2))
a,b,c = map(int,input().split())
print(max(0,c-(a-b))

### FIXED CODE ###

a,b,c = map(int,input().split())
print(max(0,c-(a-b)))
n=int(input())
a=int(input())
b=int(input())
densha=n*a
taxi=b
if densha>taxi:
    print(taxi)
elif densha<taxi:
    print(densha)
else:
    print(densha)

### FIXED CODE ###

n,a,b=map(int,input().split())
densha=n*a
taxi=b
if densha>taxi:
    print(taxi)
elif densha<taxi:
    print(densha)
else:
    print(densha)
N = int(input())

def factorize(n):
    # NOTE: if n == 1, return []
    if n < 1:
        raise Exception('Invalid input: n = {}'.format(n))
    i = 2
    ret = []
    while i * i <= n:
        while n % i == 0:
            n //= i
            ret.append(i)
        i += 1
    if n > 1:
        ret.append(n)
    return ret

A = factorize(N)
l = len(A)

def res(i, B, C):
    if i >= l:
        val = 1
        for b in B:
            val *= b
        C.append(max(len(str(val)), len(str(N//val))))
        return None
    B.append(A[i])
    res(i+1, B, C)
    B.pop()
    res(i+1, B, C)
    return C

C = res(0, [], [])
print(min(C))

### FIXED CODE ###

from sys import setrecursionlimit; setrecursionlimit(10**9)
N = int(input())

def factorize(n):
    # NOTE: if n == 1, return []
    if n < 1:
        raise Exception('Invalid input: n = {}'.format(n))
    i = 2
    ret = []
    while i * i <= n:
        while n % i == 0:
            n //= i
            ret.append(i)
        i += 1
    if n > 1:
        ret.append(n)
    return ret

A = factorize(N)
l = len(A)

def res(i, B, C):
    if i >= l:
        val = 1
        for b in B:
            val *= b
        C.append(max(len(str(val)), len(str(N//val))))
        return None
    B.append(A[i])
    res(i+1, B, C)
    B.pop()
    res(i+1, B, C)
    return C

if N == 1:
    print(1)
else:
    C = res(0, [], [])
    print(min(C))
N = input()
    if N[0] == N[1] == N[2] or N[1] == N[2] == N[3]:
        print("Yes")
    else:
        print("No")

### FIXED CODE ###

N = input()
if N[0] == N[1] == N[2] or N[1] == N[2] == N[3]:
  print("Yes")
else:
  print("No")
import sys
sys.setrecursionlimit(100002)
input=sys.stdin.readline
n=int(input())
graph=[{} for i in range(n)]
visited=[False]*n
for i in range(n-1):
    a,b,c=map(int,input().split())
    a-=1;b-=1
    graph[a][b]=c
    graph[b][a]=c
q,k=map(int,input().split())
dist=[0]*n
def dfs(chi,par,cost):
    dist[chi]=cost
    for i in graph[chi].keys():
        if visited[i]:continue
        if i==par:continue
        visited[i]=True
        dfs(i,chi,cost+graph[i][chi])
    return
dfs(k-1,-1,0)
for i in range(q):
    x,y=map(int,input().split())
    x-=1;y-=1
    print(dist[x]+dist[y])


### FIXED CODE ###

n=input()
if n[0]==n[2]:
  print("Yes")
else:
  print("No")
n = int(input())
a = []
for i in range(n):
    a.append(list(map(int, input().split())))
a0 = a[0]
N = int(a0[0])
K = int(a0[1])
b =list(range(0,N-1))
for i in range(K):
    di = int(a[2*i+1])
    bi = a[2*i+2]
for l in range(N):
    for i in range(K):
        for k in range(di):
            if bi[k] == l:
            	b.remove(l)
                bi.remove(l)
print(len(b))

### FIXED CODE ###

N, K = map(int, input().split())
d = []
A = []
s = [1] * N
for k in range(K):
  d.append(int(input()))
  A.append([int(i) for i in input().split()])
  
for k in range(K):
  for n in range(1, N+1):
    if n in A[k]:
      if s[n-1] == 1:
        s[n-1] = 0
print(sum(s))
a,b=map(int,input().split())
    if a>9 or b >9:
      print(-1)
    else:
      print(a*b)
      

### FIXED CODE ###

a,b=map(int,input().split())
if a >= 10 or b >= 10:
  print(-1)
else:
  print(a*b)
N = int(input())
K = int(input())
if N%K == 0:
  print("0")
else:
  print("1")


### FIXED CODE ###

N, K = map(int, input().split())
if N%K == 0:
  print(0)
else:
  print(1)
N, M = map(int, input().split())

print(min(N % M, abs(N % M - M))

### FIXED CODE ###

N, M = map(int, input().split())
 
print(min(N % M, abs(N % M - M)))
import sys
input = sys.stdin.readline

n=int(input())
xs=input()
#xk=list(map(int,list(xs)))
xj=xs.count("1")

x=int(xs,2)

def popcount(x):
    '''xの立っているビット数をカウントする関数
    (xは64bit整数)'''

    # 2bitごとの組に分け、立っているビット数を2bitで表現する
    x = x - ((x >> 1) & 0x5555555555555555)

    # 4bit整数に 上位2bit + 下位2bit を計算した値を入れる
    x = (x & 0x3333333333333333) + ((x >> 2) & 0x3333333333333333)

    x = (x + (x >> 4)) & 0x0f0f0f0f0f0f0f0f # 8bitごと
    x = x + (x >> 8) # 16bitごと
    x = x + (x >> 16) # 32bitごと
    x = x + (x >> 32) # 64bitごと = 全部の合計
    return x & 0x0000007f

for i in range(n-1,-1,-1):
    xi=x^(1<<i)
    pxi=xj
    if xs[n-1-i]==0:
        pxi=pxi+1
    else:
        pxi=pxi-1
#    print(i,xi,"pxi",pxi)
    if xi==0:
        print(0)
    else:
#        print("i",i,"xi",xi,"pxi",pxi)
        xi=xi%pxi
#        print("--i",i,"xi",xi,"pxi",pxi)
        if xi==0:
            print(1)
        else:
#            print("i",i,"xi",xi,"pxi",pxi)
#            print(i,pxi,xi,popcount(xi),xi%popcount(xi))
            icnt=1
            while xi>0:
                icnt+=1
#                print(i,pxi,xi,popcount(xi),xi%popcount(xi))
                xi=xi%popcount(xi)
            print(icnt)


### FIXED CODE ###

import sys
def input(): return sys.stdin.readline().strip()

n=int(input())
xs=input()
xj=xs.count("1")

x=int(xs,2)
xip=x%(xj+1)
if xj!=1:
    xim=x%(xj-1)

for i in range(n-1,-1,-1):
    if xs[n-1-i]=="0":
        pxi=xj+1
        i2=pow(2,i,pxi)
        xi=(xip+i2)%pxi
    elif xj==1:
        print(0)
        continue
    else:
        pxi=xj-1
        i2=pow(2,i,pxi)
        xi=(xim-i2)%pxi
    xi=xi%pxi
    if xi==0:
        print(1)
        continue
    icnt=1
    while xi>0:
#        print("i",i,"xi",xi,"icnt",icnt)
        icnt+=1
        xi=xi%(bin(xi).count("1"))
    print(icnt)
ab = raw_input().split()
print((int(ab[0])-1)*(int(ab[1])-1))

### FIXED CODE ###

ab = input().split()
print((int(ab[0])-1)*(int(ab[1])-1))
def judge(check_string):

    HITACH_STRING = "hi"

    if not((1 <= len(check_string)) && (len(check_string) <= 10)):
        print("No")

    if HITACH_STRING in check_string:
        print("Yes")
    else:
        print("No")


if __name__ == "__main__":
    hitachi_string = input()
    judge(hitachi_string)

### FIXED CODE ###

import re

def judge(check_string):

    # check length.
    if not((1 <= len(check_string)) and (len(check_string) <= 10)):
        print("No")

    # check character.
    allow_pattern = "[a-z]+"
    group = re.match(allow_pattern, check_string)

    HITACH_STRING = "^(hi){1,}$"

    if(re.match(HITACH_STRING, check_string)):
        print("Yes")
    else:
        print("No")


if __name__ == "__main__":
    hitachi_string = input()
    judge(hitachi_string)