qyliang/CodeNanoFix huggingface dataset:
Buggy code:
n = input()
keta = len(n)
N = int(n)
#print(keta)                                                                   
k = 0

if keta == 1:
    k = N
elif keta % 2 == 0:
    for i in range(keta):
        if (i+1) % 2 == 0:
            continue
        k += 9*(10**i)
    #print(int(n[0]))                                                          
else:
    for i in range(keta-1):
#        print("i = {}".format(i+1))                                           
        if (i+1) % 2 == 0:
            continue
        k += 9*(10**i)
        print(k)
    k += (N-int(n[0])*(10**(keta-1))+1)
print(k)


Fixed code:
n = input()
keta = len(n)
N = int(n)
#print(keta)                                                                   
k = 0

if keta == 1:
    k = N
elif keta % 2 == 0:
    for i in range(keta):
        if (i+1) % 2 == 0:
            continue
        k += 9*(10**i)
    #print(int(n[0]))                                                          
else:
    for i in range(keta-1):
#        print("i = {}".format(i+1))                                           
        if (i+1) % 2 == 0:
            continue
        k += 9*(10**i)
#        print(k)                                                              
    minus = (10**(keta-1))
 #   print(minus)                                                              
    k += (N-minus+1)
print(k)
Buggy code:
#another way:
def count_digits(n):
    d=0
    while(n>0):
        d += 1
        n = n//10
    return d
c=0
for i in range(1,N+1):
    if (count_digits(i)%2==1):
        c += 1
print(c)

Fixed code:
N=int(input())
#another way:
def count_digits(n):
    d=0
    while(n>0):
        d += 1
        n = n//10
    return d
c=0
for i in range(1,N+1):
    if (count_digits(i)%2==1):
        c += 1
print(c)
Buggy code:
n=int(input())

cnt=0
for i in range(1,n+1):
  if len(str(i))%2=1:
    cnt+=1
print (cnt)

Fixed code:
n = int(input())

count = 0

for i in range(1, n+1):
    if len(str(i)) % 2 == 1:
        count += 1

print(count)
Buggy code:
n = int(input())
count = 0
if len(n)%2 == 0:
  for i in range(len(n)//2):
    count += 9*(10**(2*i))
  print(count)
else:
  for i in range(len(n)//2):
    count += 9*(10**(2*i))
  count += n - 10**(len(n)-1)+1
  print(count)
  
    

Fixed code:
n = input()
count = 0
if len(n)%2 == 0:
  for i in range(len(n)//2):
    count += 9*(10**(2*i))
  print(count)
else:
  for i in range(len(n)//2):
    count += 9*(10**(2*i))
  count += int(n) - 10**(len(n)-1)+1
  print(count)
Buggy code:
n = int(input())
m = 0
for i in range(1,n):
  if (len(str(i))-1)%2 == 0:
    m += 1
print(m)

Fixed code:
n = int(input())
m = 0
for i in range(1,n+1):
  if (len(str(i))-1)%2 == 0:
    m += 1
print(m)
Buggy code:
import math
n = str(input()) 


keta = (len(n))
if (keta%2==0):
    max = int(keta/2)
else:
    max = int(keta/2)+1
count = 0
t = int(n)
if(keta%2==0):
    for i in range(1,max+1):
        count += 9*10**((2*(i-1)))
else:
    for i in range(1,max):
        print(max)
        count += 9*10**((2*(i-1)))
    t = t - 10**(keta-1)
    count += t
    count +=1
print(count)







Fixed code:
import math
n = str(input()) 
keta = (len(n))
max = int(keta/2)+1

count = 0
t = int(n)
if(keta%2==0):
    for i in range(1,max):
        count += 9*10**((2*(i-1)))
else:
    for i in range(1,max):
        count += 9*10**((2*(i-1)))
    t = t - 10**(keta-1)
    count += t
    count +=1
print(count)
Buggy code:
n=int(input())
if len(n)==1:
    print(n)
elif len(n)==2:
    print(9)
elif len(n)==3:
    print(n-90)
elif len(n)==4:
    print('909')
elif len(n)==5:
    print(n-9090)
else:
    print('90909')

Fixed code:
n=input()
if len(n)==1:
    print(n)
elif len(n)==2:
    print('9')
elif len(n)==3:
    print(int(n)-90)
elif len(n)==4:
    print('909')
elif len(n)==5:
    print(int(n)-9090)
else:
    print('90909')
Buggy code:
N = int(input())
i = 0
u = int(0)

for i in range(N):
    I = str(i+1)
    L=int(len(I))


    if L % 2 == 1:
        u = u + 1
        print(u)

print(u)

Fixed code:
N = int(input())
i = 0
u = int(0)

for i in range(N):
    I = str(i+1)
    L=int(len(I))


    if L % 2 == 1:
        u = u + 1

print(u)
Buggy code:
ans=0
for i in range(int(input())):
  if len(str(i))%2:
    ans+=1
print(ans)

Fixed code:
ans=0
for i in range(1,int(input())+1):
  if len(str(i))%2:
    ans+=1
print(ans)
Buggy code:
n=int(input())
#A=list(map(int,input().split()))
#b=list(map(int,input().split()))
#s=[input() for _ in range(n)]
ans=0
for i in range(1,n+1):
        if len(str(i))=1:
                ans+=1
print(ans)



Fixed code:
n=int(input())
#A=list(map(int,input().split()))
#b=list(map(int,input().split()))
#s=[input() for _ in range(n)]
ans=0
for i in range(1,n+1):
        if len(str(i))%2==1:
                ans+=1
print(ans)
Buggy code:
n=int(input())
i=1
ans=0

while i!=n+2:
    if (1<=i and 9>=i):
  
        ans+=1
    if (100<=i and 999>=i):
  
        ans+=1
    if (10000<=i and 99999>=i):
        ans+=1
       
    i+=1


print(ans)


Fixed code:
n=int(input())
i=1
ans=0

while i!=n+1:
    if (1<=i and 9>=i):

        ans+=1
    if (100<=i and 999>=i):

        ans+=1
    if (10000<=i and 99999>=i):
        ans+=1

    i+=1


print(ans)
Buggy code:
n = int(input())
count = 0
#print(len(str(n)))
'''
if len(str(n)) % 2 == 1:
    print("yas")
else :
    print("no")
'''
for i in range(1,n):
    if len(str(i))%2==1:
        count += 1
print(count)


Fixed code:
n = int(input())
count = 0
#print(len(str(n)))
'''
if len(str(n)) % 2 == 1:
    print("yas")
else :
    print("no")
'''
for i in range(1,n+1):
    if len(str(i))%2==1:
        count += 1
print(count)
Buggy code:
N = int(input())
a = 0
for i in range(0,N):
  I = str(i)
  if len(I) % 2 == 1:
    a = a + 1
print(a)

Fixed code:
N = int(input())
a = 0
for i in range(1,N+1):
  s = str(i)
  if len(s) % 2 == 1:
    a = a + 1
print(a)
Buggy code:
N = int(input())

result = 0
for i in range(1, N):
    i_str = str(i)
    if (len(i_str) % 2) == 1:
        result += 1
print(result)

Fixed code:
N = int(input())

result = 0
for i in range(1, N+1):
    i_str = str(i)
    if (len(i_str) % 2) == 1:
        result += 1
print(result)
Buggy code:
number = int(input())
ans = 0

for i in range(1,number+1):
  if len(str(i)) % 2 != 1:
    ans += 1

print(ans)

Fixed code:
number = int(input())
ans = 0

for i in range(1,number+1):
  if len(str(i)) % 2 != 0:
    ans += 1

print(ans)
Buggy code:
N = int(input())

res = 0
for i in range(1, N):
    res += 1 if len(str(i)) % 2 == 1 else 0
print(res)

Fixed code:
N = int(input())

res = 0
for i in range(1, N+1):
    res += 1 if len(str(i)) % 2 == 1 else 0
print(res)
Buggy code:
a=int(input())
count=0
for i in range(a+1):
    if int(len(str(i)))%2!=0:
        count+=1
    else:
        continue
print(count)


Fixed code:
a=input()
a=int(a)
count=0
for i in range(1,a+1):
    i=str(i)
    if len(i)%2!=0:
        count+=1
    else:
        continue
print(count)
Buggy code:
N = int(input())
ans = 0
for i in range(1, N+1):
  	if len(str(i)) % 2 == 1:
        ans += 1

print(ans)

Fixed code:
N = int(input())

cnt = 0
for i in range(1,N+1):
  if len(str(i))%2 == 1:
    cnt += 1
print(cnt)
Buggy code:

N = input()

ans = 0

if len(N) == 1:
    ans = int(N)

else:
    for i in range(1, len(N) + 1):

        dataS = N[i-1]

        if i == 1:
            ans = ans + 9

        elif i % 2 == 1:

            if i == len(N):
                data1 = (int(N[len(N) - i]) - 1) 
                data2 = int(N[-(len(N)-1):]) + 1

                ans = ans + data1 + data2

            else:
                ans = ans + 9 * 10**(i-1)

Fixed code:

N = input()

ans = 0

if len(N) == 1:
    ans = int(N)

else:
    for i in range(1, len(N) + 1, 2):

        dataS = N[i-1]

        if i == 1:
            ans = ans + 9

        elif i % 2 == 1:

            if i == len(N):
                data1 = (int(N[len(N) - i]) - 1)
                data2 = int(N[-(len(N)-1):]) + 1

                ans = ans + data1 *10**(i-1) + data2

            else:
                ans = ans + 9 * 10**(i-1)
            
print(str(ans))
Buggy code:
N=int(input())
count=0
for i in range(1,6):
  if N >= 10**(i):
    if i%2==1:#1,3,5 (10,1000,100000)
      count+=9*10**(i-1)
  else:
    if i%2==1:#1,3,5 (10,1000,100000)
      count+=N-10**(i-1)+1
      break
print(count)

Fixed code:
N=int(input())
count=0
for i in range(1,6):
  if N >= 10**(i):
    if i%2==1:#1,3,5 (10,1000,100000)
      count+=9*10**(i-1)
  else:
    if i%2==1:#1,3,5 (10,1000,100000)
      count+=N-10**(i-1)+1
    break
print(count)
Buggy code:
N = input()
count = 0
for i in range(1, int(N)):
    if len(str(i)) % 2 != 0:
        count += 1
print(count)

Fixed code:
N = int(input())
count = 0
N += 1
for i in range(1, N):
    if len(str(i)) % 2 != 0:
        count += 1
print(count)
Buggy code:
N = int(input())

if N <= 99:
    print(max(9,N))
    exit()

if N <= 9999:
    print(min(N - 99 + 9, 999 - 99 + 9))
    exit()

print(min(N - 9999 + 909, 90909))

Fixed code:
N = int(input())

if N <= 99:
    print(min(9,N))
    exit()

if N <= 9999:
    print(min(N - 99 + 9, 999 - 99 + 9))
    exit()

print(min(N - 9999 + 909, 90909))
Buggy code:
import sys
input=sys.stdin.readline
N=input()
if N<=9:
  print(N)
elif 10<=N<=99:
  print(10)
elif 100<=N<=999:
  print(9+(N-99))
elif 1000<=N<=9999:
  print(909)
elif 10000<=N<=99999:
  print(909+(N-9999))
else:
  print(90909)


Fixed code:
import sys
input=sys.stdin.readline
N=int(input())
ans=0
if N<=9:
  ans=N
elif 10<=N<=99:
  ans=9
elif 100<=N<=999:
  ans=9+(N-99)
elif 1000<=N<=9999:
  ans=909
elif 10000<=N<=99999:
  ans=909+(N-9999)
else:
  ans=90909
print(ans)
Buggy code:
N = int(input())
res = 0 
for i in range(1, N):
  if (len(str(i)) % 2) == 1:
    res += 1
print(res)

Fixed code:
N = int(input())
res = 0 
for i in range(1, N + 1):
  if (len(str(i)) % 2) == 1:
    res += 1
print(res)
Buggy code:
# -*- coding: utf-8 -*-
i = input()
n = len(i)
ans = 0
for j in range(n + 1):
  if j == n and j % 2:
    ans += int(i) - int(str(9) * (j - 1))
  elif j % 2 == 1:
    ans += 10 ** j - int(str(9) * (j - 1)) - 1
print(ans)

Fixed code:
# -*- coding: utf-8 -*-
i = input()
n = len(i)
ans = 0
for j in range(n + 1):
  if j == n and j % 2 == 1 and j == 1:
    ans += int(i)
  elif j == n and j % 2 == 1:
    ans += int(i) - int(str(9) * (j - 1))
  elif j == 1:
    ans += 9
  elif j % 2 == 1:
    ans += 10 ** j - int(str(9) * (j - 1)) - 1
print(ans)
Buggy code:
n=input()
nn=int(n)
cnt=nn-int('9'+(len(n)-1)*'0')
if len(n)==1:
    ans=nn
elif len(n)==2:
    ans=9
elif len(n)==3:
    ans=cnt+9
elif len(n)==4:
    ans=909
elif len(n)==5:
    ans=cnt+909
else:
    ans=90909
print(ans)


Fixed code:
n=input()
nn=int(n)
cnt=nn-int('9'+(len(n)-2)*'0')
if len(n)==1:
    ans=nn
elif len(n)==2:
    ans=9
elif len(n)==3:
    ans=cnt
elif len(n)==4:
    ans=909
elif len(n)==5:
    ans=cnt-90
else:
    ans=90909
print(ans)
Buggy code:
N = int(input());count = 0
for i in range(1,N):
    if len(str(i))%2==1:
        count += 1
print(count)

Fixed code:
N = int(input());count = 0
for i in range(1,N+1):
    if len(str(i))%2==1:
        count += 1
print(count)
Buggy code:
str = input()
num = int(str)
numbers = len(str)
print(numbers)
con = 0
a = str[-6:0]
str = input()
num = int(str)
const = len(str)
numbers = len(str)
even = 0
con = 0
a = str[even:const]
b = int(a)
if numbers%2==1:
    pass
else:
    even += 1
    numbers -= 1
    a = str[even:const]
    b = int("9"*(numbers))
while numbers>0:
    con += (b - 10**(numbers-1) + 1)
    even += 2
    numbers -= 2
    if numbers>0:
        a = str[even:const]
        b = int("9"*(numbers))
print(con)

Fixed code:
str = input()
num = int(str)
const = len(str)
numbers = len(str)
even = 0
con = 0
a = str[even:const]
b = int(a)
if numbers%2==1:
    pass
else:
    even += 1
    numbers -= 1
    a = str[even:const]
    b = int("9"*(numbers))
while numbers > 0:
    con += (b - 10**(numbers-1) + 1)
    even += 2
    numbers -= 2
    if numbers>0:
        a = str[even:const]
        b = int("9"*(numbers))
print(con)
Buggy code:
n = input()
d = len(n)

s = 0
for i in range(1, d):
    s += 9 * 10 ** (i - 1) if i % 2 else 0
s += int(n) - 10 ** (d - 1) if d % 2 else int(0)

print(s)

Fixed code:
n = input()
d = len(n)

s = 0
for i in range(1, d):
    s += 9 * 10 ** (i - 1) if i % 2 else 0
s += int(n) - 10 ** (d - 1) + 1 if d % 2 else 0

print(s)
Buggy code:
a = input()
b = 0
for i in range(1,int(a)+1):
  if len(a)%2 ==1:
    b+=1
print(b)

Fixed code:
a = input()
b = 0
for i in range(1,int(a)+1):
  if len(str(i))%2 ==1:
    b+=1
print(b)
Buggy code:
a = input()
if len(a) ==6:
  print(90909)
elif len(a) == 5:
  print(90909-90000 +int(a)-9999)
elif len(a) == 4:
  print(90909-90000)
elif len(a) ==3:
  print(90909-90000-900b+int(a)-99)
elif len(a) ==2:
  print(90909-90000-900)
else:
  print(int(a))
  

Fixed code:
a = input()
if len(a) ==6:
  print(90909)
elif len(a) == 5:
  print(90909-90000 +int(a)-9999)
elif len(a) == 4:
  print(90909-90000)
elif len(a) ==3:
  print(90909-90000-900+int(a)-99)
elif len(a) ==2:
  print(90909-90000-900)
else:
  print(int(a))
Buggy code:
N=input()
count=0
for i in range(1,N+1):
  ks=len(str(i))
  if ks!=2 and ks!=4:
    count=count+1
print count
    
    
    

Fixed code:
N=int(input())
count=0
for i in range(1,N+1):
  ks=len(str(i))
  if ks!=2 and ks!=4 and ks!=6:
    count=count+1
print(count)
Buggy code:
N = int(input())
odd_num = 0
for i in range (1,N+1):
    if i%2==0:
        odd_num += 1
print(odd_num)

Fixed code:
N = int(input())
odd_num = 0
for i in range (1,N+1):
    if len(str(i))%2==1:
        odd_num += 1
print(odd_num)
Buggy code:
N=int(input())
ans=0
for i in range(N) :
    if len(str(i))%2==0 :
        ans+=0
    else :
        ans+=1
print(ans-1)

Fixed code:
N=int(input())
ans=0
for i in range(1,N+1) :
    if len(str(i))%2==0 :
        ans+=0
    else :
        ans+=1
print(ans)
Buggy code:
n = input()

num = int(n)

s = 0

for i in range(1,num):
	#print(i)
	if len(str(i))%2 == 1 :
		s = s + 1

print(s)


Fixed code:
n = input()

num = int(n)

s = 0

for i in range(1,num+1):
	#print(i)
	if len(str(i))%2 == 1 :
		s = s + 1

print(s)
Buggy code:
N = int(input())
ans = 0
for i in range(1, N + 1):
if len(i) % 2 == 1:
ans += 1
print(ans)

Fixed code:
N = int(input())
ans = 0
for i in range(1, N+1):
    ans += len(str(i))%2
print(ans)
Buggy code:
n = int(input())
l = len(str(n))
ans = 0
for i in range(l//2):
  i = i*2
  ans += 9*(10**i)
if l % 2 == 1:
  ans += n-10**(l-1)
print(ans)

Fixed code:
n = int(input())
l = len(str(n))
ans = 0
for i in range(l//2):
  i = i*2
  ans += 9*(10**i)
if l % 2 == 1:
  ans += n-10**(l-1)+1
print(ans)
Buggy code:
def uneven(number):
    result = []
    for x in range(1, number + 1):
        numberOfDigits = 1
        y = x

        if(y >= 100000):
            numberOfDigits = numberOfDigits + 5
            y = y / 100000

        if(y >= 10000):
            numberOfDigits = numberOfDigits + 4
            y = y / 10000

        if(y >= 1000):
            numberOfDigits = numberOfDigits + 3
            y = y / 1000

        if(y >= 100):
            numberOfDigits = numberOfDigits + 2
            y = y / 100

        if(y >= 10):
            numberOfDigits = numberOfDigits + 1

        if (numberOfDigits % 2 != 0):
            result.append(x)

    print(len(result))

Fixed code:
def uneven(number):
    result = []
    for x in range(1, number + 1):
        numberOfDigits = 1
        y = x

        if(y >= 100000):
            numberOfDigits = numberOfDigits + 5
            y = y / 100000

        if(y >= 10000):
            numberOfDigits = numberOfDigits + 4
            y = y / 10000

        if(y >= 1000):
            numberOfDigits = numberOfDigits + 3
            y = y / 1000

        if(y >= 100):
            numberOfDigits = numberOfDigits + 2
            y = y / 100

        if(y >= 10):
            numberOfDigits = numberOfDigits + 1

        if (numberOfDigits % 2 != 0):
            result.append(x)

    print(len(result))
    return len(result)
  
uneven(int(input()))
Buggy code:
n = int(input())
cou = 0
for i in range(n, 1):
    num = len(str(i))
    if not num%2:
        cou+=1
print (cou)

Fixed code:
n = int(input())
cou = 0
for i in range(1, n+1):
    num = len(str(i))
    if num%2:
        cou+=1
print (cou)
Buggy code:
# ABC136B

n = int(input())
if n <= 9:
    print(n)
elif n <= 99:
    print(9)
elif n <= 999:
    print(9 + n - 99)
elif n <= 9999:
    print(909
elif n <= 99999:
    print(909 + n - 9999)
else:
    print(90909)


Fixed code:
# ABC136B

n = int(input())
if n <= 9:
    print(n)
elif n <= 99:
    print(9)
elif n <= 999:
    print(9 + n - 99)
elif n <= 9999:
    print(909)
elif n <= 99999:
    print(909 + n - 9999)
else:
    print(90909)
Buggy code:
n=int(input())
a = 0

for i in range(1,n):
  if 0 <=  i  <= 9 :
    a+=1
  if 100 <= i <= 999 :
    a+=1
  if 10000 <= i <= 99999 :
    a+=1
  
print(a)

Fixed code:
n=int(input())
a = 0

for i in range(1,n+1):
  if 0 <=  i  <= 9 :
    a+=1
  if 100 <= i <= 999 :
    a+=1
  if 10000 <= i <= 99999 :
    a+=1
  
print(a)
Buggy code:
n=int(input())
s=len(str(n))
c=0

for i in range(s-1):
    if i%2==1:
        c+=9*10**(s-i-2)
if s%2==0:
    print(c)
else:
    c+=n-10**(s-1)+1
    print(c)

Fixed code:
n=int(input())
s=len(str(n))
c=0
for i in range(s-1):
    if i%2==0:
        c+=9*10**i
if s%2==1:
    c+=n-(10**(s-1)-1)

print(c)
Buggy code:
n = input().rstrip()
n_sp = list(map(int, list(n)))
print(n_sp)
dig  = len(n_sp)
odd = 0

if dig == 1:
    print(n_sp[0])

else:
    for i in range(1, dig, 2):
        odd += int("9" * i) - 10 ** (i-1) + 1
        print("i: " + str(i) + " odd: " + str(odd))

    if dig%2 == 1:
        odd += int(n) - n_sp[0]  * 10 ** (dig-1) +1

    print(odd)

Fixed code:
n = input().rstrip()
n_sp = list(map(int, list(n)))
dig  = len(n_sp)
odd = 0
 
if dig == 1:
    print(n_sp[0])

else:
    for i in range(1, dig, 2):
        odd += int("9" * i) - 10 ** (i-1) + 1
 
    if dig%2 == 1:
        odd += int(n) - 10 ** (dig-1) +1
 
    print(odd)
Buggy code:
count = 0
for i in range(1, n + 1):
    if len(str(i)) % 2 == 1:
        count += 1
print(count)

Fixed code:
n = int(input())

count = 0
for i in range(1, n + 1):
    if len(str(i)) % 2 == 1:
        count += 1
print(count)
Buggy code:
import math
import numpy as np
a=int(input())
l=(np.arange(a)+1).tolist()
l_odd = [i for i in l if int(math.log10(i))+1 % 2 == 1]
print(len(l_odd))


Fixed code:
import math
import numpy as np
a=int(input())
l=(np.arange(a)+1).tolist()
#print(l)
l_odd = [i for i in l if int(math.log10(i)) % 2 == 0]
#print(l_odd)
print(len(l_odd))
Buggy code:
n=int(input())
ans=0
for i in range(1,n):
  if len(str(i))%2==1:
    ans+=1
    
print(ans)




Fixed code:
N = int(input())
ans = 0
for i in range(1, N+1):
  if(len(str(i)) % 2):
    ans += 1
print(ans)
Buggy code:
N=int(input())
count=0
S=""
for i in range(1,N-1):   
    S=len(str(i))
    if S%2!=0:
           count=count+1
print(count)

Fixed code:
N=int(input())
count=0
S=""
for i in range(1,N+1):   
    S=len(str(i))
    if S%2!=0:
           count=count+1
print(count)
Buggy code:
n = int(input())
odd = []
for i in range(1, n):
    if len(str(i)) % 2 == 1:
        odd.append(i)
print(len(odd))


Fixed code:
n = int(input())
odd = []
for i in range(1, n + 1):
    if len(str(i)) % 2 == 1:
        odd.append(i)
print(len(odd))
Buggy code:
n = int(input())
if n <= 9:
  print(n)
else:
  if n <= 99:
    print(9)
  else:
    if n <= 999:
      print(n - 90)
    else:
      if n <= 9999:
        print(909)
      else:
        if n <= 100000:
          print(n - 9090)
        else:
          print(90909)

Fixed code:
n = int(input())
if n <= 9:
  print(n)
else:
  if n <= 99:
    print(9)
  else:
    if n <= 999:
      print(n - 90)
    else:
      if n <= 9999:
        print(909)
      else:
        if n <= 99999:
          print(n - 9090)
        else:
          print(90909)
Buggy code:
num = list(range(1, (int(input()-1))))

count = 0
for i in num:
    if len(str(i)) % 2 == 1:
        count += 1

print(count)


Fixed code:
num = list(range(1, (int(input())+1)))

count = 0
for i in num:
    if len(str(i)) % 2 == 1:
        count += 1

print(count)
Buggy code:
n = int(input())
rank = len(str(n))
first = int(str(n)[0])

print( rank )
ans = 0

for i in range( rank ):
    if i % 2 != 0:
        print( i )
        ans += 9 * 10 ** (i-1)
if rank % 2 != 0:
    ans += ( first - 1 ) * (10 ** rank)
    ans += n - first * ( 10 ** rank ) + 1
print ( ans )

Fixed code:
n = int(input())
rank = len(str(n))
first = int(str(n)[0])

ans = 0

for i in range( rank ):
    if i % 2 != 0:
        ans += 9 * 10 ** (i-1)
if rank % 2 != 0:
    ans += ( first - 1 ) * (10 ** (rank-1))
    ans += n - first * ( 10 ** (rank-1) ) + 1
print ( ans )
Buggy code:
N = int(input())
f = len(str(N))
print(f)
if f%2 == 0:
  print((100**(f//2)-1)//11)
else:
  print((100**((f-1)//2)-1)//11 + N - 10**(f-1) + 1)


Fixed code:
N = int(input())
f = len(str(N))
if f%2 == 0:
  print((100**(f//2)-1)//11)
else:
  print((100**((f-1)//2)-1)//11 + N - 10**(f-1) + 1)
Buggy code:
N = int(input())
cnt = 0

for n in range(1,N):
  if len(str(n)) % 2 != 0:
    cnt += 1

print(cnt)

Fixed code:
N = int(input())
cnt = 0

for n in range(1,N+1):
  if len(str(n)) % 2 != 0:
    cnt += 1

print(cnt)
Buggy code:
N = int(input())

if N = 100000:
  print(90909)
elif N >= 10000:
  print(909 + N - 9999)
elif N >= 1000:
  print(909)
elif N >= 100:
  print(9 + N - 99)
elif N >= 10:
  print(9)
else:
  print(N)

Fixed code:
N=int(input())
if N<10:
    print(N)
elif 10<=N<100:
    print(9)
elif 100<=N<1000:
    print(N-99+9)
elif 1000<=N<10000:
    print(909)
elif 10000<=N<100000:
    print(N-9999+909)
else:
    print(90909)
Buggy code:
#B
n = int(input())
s = str(n)
l = len(s)

cnt = 0

for i in range(1,l+1):
    s = str(n)
    l = len(s)
    if i % 2 == 1:
        if n < 10:
            cnt += n
            break
        elif i == 1:
            cnt += 9
            
        else:
            cnt += 10**(i) - 10**(i-1)
            
print(cnt)
            

Fixed code:
#B
n = int(input())
s = str(n)
l = len(s)

cnt = 0

for i in range(1,l+1):
    s = str(n)
    l = len(s)
    if i % 2 == 1:
        if n < 10:
            cnt += n
            break
        elif i == 1:
            cnt += 9
            
        elif n < 10**i:
            cnt += n - 10**(i-1) + 1
            
            
        else:
            cnt += 10**(i) - 10**(i-1)
print(cnt)
Buggy code:
N = int(input())
count=0

if for i in range(1,N+1):
  if len(str(i)) % 2 != 0:
    count +=1
    
print(count)

Fixed code:
N = int(input())

sum = 0
for i in range(1, N+1):
  if (len(str(i)) % 2 != 0):
      sum += 1
print(sum)
Buggy code:
n = input()
digit = len(str(n))

count = -1
for i in range(digit - 1):
  if (i + 1) % 2 == 1:
    count += 10 ** i

if digit % 2 == 1:
  count += n - 10 ** (digit - 1)

print(count)

Fixed code:
n = int(input())
digit = len(str(n))

count = 0
for i in range(digit - 1):
  if (i + 1) % 2 == 1:
    count += 10 ** (i + 1) - (10 ** i)

if digit % 2 == 1:
  count += n - 10 ** (digit - 1) + 1

print(count)
Buggy code:
n = int(input())

c = 0
t = n
while t // 10 != 0:
    c += 1
    t = t // 10

print(c)

ans = 0
if c == 0:
    ans = n
elif c == 1:
    ans = 9
elif c == 2:
    ans = n - 99 + 9
elif c == 3:
    ans = 909
elif c == 4:
    ans = n - 9999 + 909
else:
    ans = 90909

print(ans)

Fixed code:
n = int(input())

c = 0
t = n
while t // 10 != 0:
    c += 1
    t = t // 10

ans = 0
if c == 0:
    ans = n
elif c == 1:
    ans = 9
elif c == 2:
    ans = n - 99 + 9
elif c == 3:
    ans = 909
elif c == 4:
    ans = n - 9999 + 909
else:
    ans = 90909

print(ans)
Buggy code:
n int(input())
c = 0
for i in range(1, n+1):
  if len(list(str(i))) % 2 != 0:
    c += 1

print(c)

Fixed code:
n = int(input())
c = 0
for i in range(1, n+1):
  if len(list(str(i))) % 2 != 0:
    c += 1

print(c)
Buggy code:
N=int(input())
if N<10:
  print(N)
elif 10=<N<100:
  print(9)
elif 100=<N<1000:
  print(N-90)
elif 1000=<N<10000:
  print(909)
elif 10000=<N<100000:
  print(N-9090)
else:
  print(90909)

Fixed code:
N=int(input())
if N<10:
  print(N)
elif 10<=N<100:
  print(9)
elif 100<=N<1000:
  print(N-90)
elif 1000<=N<10000:
  print(909)
elif 10000<=N<100000:
  print(N-9090)
else:
  print(90909)