qyliang/CodeNanoFix huggingface dataset:
Buggy code:

n = int(input())
count = 0
lenn = len(str(int(n)))
if lenn == 1:
    count += n
else:
    for i in range(1,lenn+1):
        if i == 1:
            count += 9
        elif i % 2 == 0:
            pass
        elif i == lenn:
            if i % 2 == 0:
                count += ((10**i) - 1) - (10**(i-1)) +1
            else:
                count += ((10**(i - 1)) * int(str(n)[0])) - (10**(i - 1))
        else:
            count += ((10**i) - 1) - (10**(i-1)) +1

        
print(count)

Fixed code:

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

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:
N = int(input())
keta = len(N)
cnt = 0

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

if keta % 2 == 1:
    cnt += N - 10**(keta-1) + 1

print(cnt)

Fixed code:
N = int(input())
keta = len(str(N))
cnt = 0

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

if keta % 2 == 1:
    cnt += N - 10**(keta-1) + 1

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

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 = int(input())
cnt = 0

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

print(cnt)

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

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

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

def count(start, end):
  return end - start + 1

keta = 1
while True:
  if 10**keta > N:
    break
  else:
  	keta += 1

num = 0
for k in range(1, keta+1):
  if k % 2 == 1:
	num += count(10**(k-1), min(N, 10**k)-1)
    
print(num)

Fixed code:
N = int(input())
def count(start, end):
  return end - start + 1
keta = 1
while True:
  if 10**keta > N:
    break
  else:
    keta += 1
num = 0
for k in range(1, keta+1):
  if k % 2 == 1:
    num += count(10**(k-1), min(N, 10**k-1))
print(num)
Buggy code:
N = int(input())
sum = 0
for i in range[1,N+1]:
  if len(str(i)) % 2 == 1:
    sum += 1
print(sum)

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


Fixed code:
N = int(input())
count = 0
for i in range(N):
  if len(str(i+1)) % 2 == 1:
    count += 1
print(count)
Buggy code:
N = int(input())
ans = 0
anser = 0
for x in range(1,10):
    if N > x:
        ans = ans + 1
for g in range(100,1000):
    if N > g:
        anser = anser + 1
for m in range(10000,100000):
    if N > m:
        ans = ans + 1
print(ans+ anser)

Fixed code:
N = int(input())
ans = 0
for x in range(1,10):
    if N >= x:
        ans = ans + 1
for g in range(100,1000):
    if N >= g:
        ans = ans + 1
for m in range(10000,100000):
    if N >= m:
        ans = ans + 1
print(ans)
Buggy code:
N = int(input())

c = 0

for i in range(6):
    if N >= 10 ** i:
        if i % 2 == 1:
            c += 9 * (10 ** (i - 1))
            print(c)
    else:
        if i % 2 == 1:
            c += N - (10 ** (i - 1)) + 1
            print(c)
        break

print(c)



Fixed code:
N = int(input())

c = 0

for i in range(6):
    if N >= 10 ** i:
        if i % 2 == 1:
            c += 9 * (10 ** (i - 1))
    else:
        if i % 2 == 1:
            c += N - (10 ** (i - 1)) + 1
        break

print(c)
Buggy code:
s = input()
sd = int(s)
sl = len(s)
ans = 0
if sl <= 2:
    ans += sd
if sl == 3:
    ans += sd - 99 + 9
if sl == 4:
    ans += 900 + 9
if sl == 5:
    ans += sd - 9999 + 900 + 9
if sl == 6:
    ans += 90000 + 900 + 9


print(ans)


Fixed code:
s = input()
sd = int(s)
sl = len(s)
ans = 0
if sl == 1:
    ans += sd
if sl == 2:
    ans += 9
if sl == 3:
    ans += sd - 99 + 9
if sl == 4:
    ans += 900 + 9
if sl == 5:
    ans += sd - 9999 + 900 + 9
if sl == 6:
    ans += 90000 + 900 + 9


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

Fixed code:
n = int(input())
cnt = 0
cnt += (n - 10 ** (len(str(n)) - 1) + 1) * (len(str(n)) % 2 == 1)
n -= n - 10 ** (len(str(n)) - 1) + 1
if n == 0:
    print(cnt)
    exit()
for i in range(len(str(n))):
    if (len(str(n)) - i) % 2 == 1:
        cnt += 10 ** (len(str(n)) - i - 1) * 9
print(cnt)
Buggy code:
from sys import stdin

N = int(stdin.readline().rstrip())

ans = 0
digit = len(str(N))
for i in range(digit):
    if i % 2 == 1:
        ans += 10 ** i - 10 ** (i - 1)

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

print(ans)


Fixed code:
from sys import stdin

N = int(stdin.readline().rstrip())

ans = 0
digit = len(str(N))
for i in range(digit):
    if i % 2 == 1:
        ans += 10 ** i - 10 ** (i - 1)

if digit % 2 == 1:
    ans += N - 10 ** (digit - 1) + 1

print(ans)
Buggy code:
# -*- coding: utf-8 -*-


if __name__ == '__main__':
    n = int(input())
    num = 0
    for i in range(n):
        if len(str(i)) % 2 == 1:
            num += 1
    print(num)


Fixed code:
# -*- coding: utf-8 -*-


if __name__ == '__main__':
    n = int(input())
    num = 0
    for i in range(n):
        if len(str(i+1)) % 2 == 1:
            num += 1
    print(num)
Buggy code:
N = int(input())

ans = 0

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

Fixed code:

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

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

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

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

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 = int(input())
print(len([i for i in range(1,100000+1) if len(str(i))%2==1]))


Fixed code:
n = int(input())
print(len([i for i in range(1,n+1) if len(str(i))%2==1]))
Buggy code:
n = int(input())

i = 0
answer = 0
while n > 10 ** (2*i + 1):
  answer += 10 ** (2*i + 1) - 10 ** (2*i)
  i += 1
answer += max(0, n - 10 ** (2*i) + 1)

print(answer)

Fixed code:
n = int(input())

i = 0
answer = 0
while n >= 10 ** (2*i + 1):
  answer += 10 ** (2*i + 1) - 10 ** (2*i)
  i += 1
answer += max(0, n - 10 ** (2*i) + 1)

print(answer)
Buggy code:
intCount = 0

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

print(intCount)

Fixed code:
n = int(input())

intCount = 0
for idx in range(1, n+1):
    if len(str(idx)) % 2 == 1:
        intCount += 1

print(intCount)
Buggy code:
#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
input = sys.stdin.readline


def main():
    n = str(input()).replace("\n", "")

    count = 0
    for i in range(len(n), 0, -1):
        if i % 2 != 0:
            if i == len(n):
                count += int(n[1:]) + 1
            else:
                s = str(i) + "0"
                count += int(s) - 1

    print(count)


if __name__ == '__main__':
    main()


Fixed code:
#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys
input = sys.stdin.readline


def main():
    n = int(input())

    l = [str(i) for i in range(1, n + 1)]
    count = 0
    for i in l:
        if len(i) % 2 == 1:
            count += 1

    print(count)


if __name__ == '__main__':
    main()
Buggy code:
n = int(input())
a = 0
for i in (1, n+1):
  if len(str(i)) % 2 == 1:
    a += 1
print(a)

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

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

N_length = len(str(N))
ans = 0

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

print(ans)


Fixed code:
N = int(input())

N_length = len(str(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())
a = len(str(n))
if a==1:
    print(n)
elif a==2:
    print(9)
elif a==3:
    print(n-99+9)
elif a==4:
    print(999-99+9)
elif a==5:
    print(n-9999+999-99+9)

Fixed code:
n = int(input())
a = len(str(n))
if a==1:
    print(n)
elif a==2:
    print(9)
elif a==3:
    print(n-99+9)
elif a==4:
    print(999-99+9)
elif a==5:
    print(n-9999+999-99+9)
elif a==6:
    print(90909)
Buggy code:
N = int(input())

cnt = 0
i = 0
for i in range(0, 5, 2):
  m = 10 ** i
  print(m)
  if len(str(m)) > len(str(N)):
    break
  M = int("9" * (i + 1))
  print(M)
  
  if M > N:
    M = N
  print(M)
  
  cnt += M - m + 1

print(cnt)

Fixed code:
N = int(input())

cnt = 0
i = 0
for i in range(0, 5, 2):
  m = 10 ** i
  if len(str(m)) > len(str(N)):
    break
  M = int("9" * (i + 1))
  
  if M > N:
    M = N
  
  cnt += M - m + 1

print(cnt)
Buggy code:
N = int(input())
count = 0

for i in range(0, len(str(N)), 2):
    min = 10**i
    max = 10**(i+1)-1
    if  max < N:
        count += (max-min+1)
        print(count)
    else:
        count += (N-min+1)
        print(count)
        break

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

for i in range(len(str(N))):
    if i%2 == 0:
        min = 10**i
        max = 10**(i+1)-1
        if  max < N:
            count += (max-min+1)
        else:
            count += (N-min+1)
            break
print(count)
Buggy code:
a=int(input())
b=len(str(a))

ans=0

if b%2==0:
    for i in range(int(b/2)):
        c=1+i*2
        ans+=(10**c-1)

else:
    ans+=(a-(10**(b-1)))
    for i in range((b-1)/2):
        e=1+i*2
        ans+=(10**c-1)

print(int(ans))


Fixed code:
a=int(input())
b=len(str(a))

ans=0

if b%2==0:
    for i in range(int(b/2)):
        c=1+i*2
        ans+=(10**c-(10**(c-1)))

else:
    ans+=(a-(10**(b-1))+1)
    for i in range(int((b-1)/2)):
        e=1+i*2
        ans+=(10**e-(10**(e-1)))

print(int(ans))
Buggy code:
n = input()
l = len(n)

# print(l)
temp=''
ans=0

if l==1:
	# print(int(n))
else:
	for i in range(1,l):
		if i%2==1:
			temp='9'
			temp+='0'*(i-1)
			ans+=int(temp)
			# print(ans)

	if l%2==1:
		ans+=(int(n)-int('9'*(l-1)))

print(ans)

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

# print(l)
temp=''
ans=0

if l==1:
	print(int(n))
else:
	for i in range(1,l):
		if i%2==1:
			temp='9'
			temp+='0'*(i-1)
			ans+=int(temp)
			# print(ans)

	if l%2==1:
		ans+=(int(n)-int('9'*(l-1)))

	print(ans)
Buggy code:
N= int(input())
N_length = len(str(N))
if(N_length == 1):
  print (int(N))
elif(N_length == 2):
  print (9)
elif(N_length == 3):
  print (9+N-900)
elif(N_length == 4):
  print (9 +900)
elif(N_length == 5 ):
  print (9+900 + N - 10000)
elif(N_length == 6):
  print (9+900 + 90000)

Fixed code:
N= int(input())
N_length = len(str(N))
if(N_length == 1):
  print (int(N))
elif(N_length == 2):
  print (9)
elif(N_length == 3):
  print (9+N-100+1)
elif(N_length == 4):
  print (9 +900)
elif(N_length == 5 ):
  print (9+900 + N - 10000 + 1)
elif(N_length == 6):
  print (9+900 + 90000)
Buggy code:
N = input()
cnt = 0
for i in range(1, int(N)):
    if len(str(i)) % 2 == 1:
        cnt += 1
    else:
        continue
print(cnt)

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

for i in range(0,5,2):
  if n>=10**(i+1):
    cnt+=9*(10*(i))
  else:
    cnt+=n-10**(i)+1
    break
    
print(cnt)    
  


Fixed code:
n=int(input())
cnt=0
x=0
 
for i in range(0,5,2):
    if n>=10**(i+1):
        cnt+=9*(10**i)
    else:
        if n>=10**(i):
            cnt+=n-(10**i)+1
        else:
            x+=1
    
print(cnt)
Buggy code:
n= int(input())
res = 0
for i in range(1,n+1):
    if 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:
n = int(input())
count = 0
for i in range(n+1):
  if len(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:
#ACB-136-B1

N = int(input())

str_N= str(N)

for i in range(1,N+1):
	if len(str(i)) % 2 ==1:
		ans +-1
print(ans)

Fixed code:
#ACB-136-B1

N = int(input())

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

for i in range(N):
    s = str(i+1)
    if len(s) == 1 or len(s) == 3 or len(s) == 5:
        ans += 1

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

for i in range(N):
    s = str(i+1)
    if len(s) == 1 or len(s) == 3 or len(s) == 5:
        ans += 1

print(ans)
Buggy code:
count = -1
a = int(input())
for row in range(a):
	if len(str(row)) % 2 == 0:
		pass
	else:
		count += 1
print(count)

Fixed code:
count = 0
a = int(input())
for row in range(a):
	if len(str(row + 1)) % 2 == 0:
		pass
	else:
		count += 1
print(count)
Buggy code:
n = int(input())
digit = len(str(n))

a = 0
if digit % 2 == 0:
  while digit > 0:
    if digit % 2 != 0:
      a += 10 ** digit - 10 ** (digit-1) 
      print(a)
    digit -= 1
else:
  digit -= 1
  a += n - 10 ** (digit) + 1
  print(a)
  while digit > 0:
    if digit % 2 != 0:
      a += 10 ** digit - 10 ** (digit-1) 
    digit -= 1

print(a)

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

a = 0
if digit % 2 == 0:
  while digit > 0:
    if digit % 2 != 0:
      a += 10 ** digit - 10 ** (digit-1)
    digit -= 1
else:
  digit -= 1
  a += n - 10 ** (digit) + 1
  while digit > 0:
    if digit % 2 != 0:
      a += 10 ** digit - 10 ** (digit-1) 
    digit -= 1

print(a)
Buggy code:
n=int(input())
count=0
for i in range(1,n+1):
    if 1<=i and i<10:
        print(i)
        count+=1
    elif 100<=i and i<1000:
        print(i)
        count+=1
    elif 10000<=i and i<100000:
        print(i)
        count+=1
    i+=1
print(count)


Fixed code:
n=int(input())
count=0
for i in range(1,n+1):
    if 1<=i and i<10:
        count+=1
    elif 100<=i and i<1000:
        count+=1
    elif 10000<=i and i<100000:
        count+=1
    i+=1
print(count)
Buggy code:
N=int(input())
C=0

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

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

cnt = 0

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

print(cnt)

Fixed code:
n = int(input())

cnt = 0

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

print(cnt)
Buggy code:
n = input()
c=0
a = [x for i in range(n)]
for x in a:
  if len(str(x)) % 2 == 1:
    c += 1
    
print(c)

Fixed code:
n = int(input())
c=0
a = [i for i in range(n+1)]
for x in a:
  if len(str(x)) % 2 == 1:
    c += 1
    
print(c-1)
Buggy code:
n=int(input())
c=0
for i in range(n):
      if len(str(i))%2!=0:
            c+=1
print(c)

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

if(n <= 9):
    return n

elif(n <= 99):
    return 9

elif(n <= 999):
    return (n - 90)

elif(n <= 9999):
    return 909

elif(n <= 99999):
    return (n - 9090)

else:
    return 90909

Fixed code:
n = int(input())

if(n <= 9):
    print(n)

elif(n <= 99):
    print(9)

elif(n <= 999):
    print(n - 90)

elif(n <= 9999):
    print(909)

elif(n <= 99999):
    print(n - 9090)

else:
    print(90909)
Buggy code:
N = int(input())

count = 0
for n in range(1, N):
    if not (len(str(n)) / 2).is_integer():
        count += 1

print(count)

Fixed code:
N = int(input())

count = 0
for n in range(1, N + 1):
    if not (len(str(n)) / 2).is_integer():
        count += 1

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


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

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

print (cnt)
Buggy code:
n=int(input())
a=list(range(n))
b=0
for i in range(n):
  if len(a[i])%2==1:
    b+=1
print(b)

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

if len(N) % 2 != 0:
    ans += (10 ** (len(N)-1)) * (int(N[0])-1)
    ans += int(N[min(1, len(N)-1):]) + 1
    if N[0] != 1:
        ans -= 1

print(ans)


Fixed code:
N = input()
ans = 0
for n in range(1, len(N), 2):
    ans += 9 * 10 ** (n-1)

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


elif len(N) % 2 != 0:
    ans += (10 ** (len(N)-1)) * (int(N[0])-1)
    ans += int(N[min(1, len(N)-1):]) + 1


print(ans)
Buggy code:
ans=0
for i in range(int(input())):
	keta=0
	n=i
	while(n):
		keta+=1
		n//=10
	if keta%2:
		ans+=1
print(ans)

Fixed code:
ans=0
for i in range(int(input())+1):
	keta=0
	n=i
	while(n):
		keta+=1
		n//=10
	if keta%2:
		ans+=1
print(ans)
Buggy code:
n = int(input())

ans = 0

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

print(ans)

Fixed code:
n = int(input())

ans = 0

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

print(ans)
Buggy code:
N = int(input())
s = N
l = len(str(s))
ans = 0
for i in range(l):
    print(l - i - 1)
    if (l - i) % 2 == 1:
        ans += N - 10 ** (l - i - 1)
    N = 10 ** (l - i - 1)
    print(N)
if l % 2 == 1:
    print(ans + 1)
else:
    print(ans)

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

Fixed code:
import sys

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

Fixed code:
N = int(input())
count = 0
for i in range(N):
  if len(str(i+1)) % 2 == 1:
    count += 1
print(count)
Buggy code:
n=input()
count=0
if len(n)==1:
  count=int(n)
if len(n)==2:
  count+=9
if len(n)==3:
    count+=(int(n)//100-1)*100+int(n)%100+1
if len(n)==4:
    count+=909
if len(n)==5:
      count+=(int(n)//10000-1)*10000+int(n)%10000+1
if len(n)==6:
      count+=90909
print(count)


Fixed code:
n=input()
count=0
if len(n)==1:
  count=int(n)
if len(n)==2:
  count+=9
if len(n)==3:
    count+=(int(n)//100-1)*100+int(n)%100+10
if len(n)==4:
    count+=909
if len(n)==5:
      count+=(int(n)//10000-1)*10000+int(n)%10000+910
if len(n)==6:
      count+=90909
print(count)
Buggy code:
n = int(input())
nlen =len(str(n))
ans = 0

if n <= 9:
  print(n)
else:
  for i in range(1,nlen+1):
    if i % 2 == 1:
      ans += 10 ** i -10 ** (i-1)
  if nlen % 2 == 0:
    ans = ans + (n - 10**(nlen-1) + 1)
  print(ans)

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

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 = int(input())

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

Fixed code:
n=int(input())
c=0
for i in range(n):
  if len(str(i+1))%2!=0:
    c+=1
print(c)
Buggy code:
N = input()
if len(N) == 1:
    print(N)
elif len(N) == 2:
    print(9)
elif len(N) == 3:
    print(9 + int(N[0])*100 - 100 + int(N[1:]))
elif len(N) == 4:
    print(9 + 900)
elif len(N) == 5:
    print(9 + 900 + 10000*int(N[0]) - 10000 + int(N[1:]))
elif len(N) == 6:
    print(9 + 900 + 90000)

Fixed code:
N = input()
if len(N) == 1:
    print(N)
elif len(N) == 2:
    print(9)
elif len(N) == 3:
    print(9 + int(N[0])*100 - 100 + int(N[1:]) + 1)
elif len(N) == 4:
    print(9 + 900)
elif len(N) == 5:
    print(9 + 900 + 10000*int(N[0]) - 10000 + int(N[1:]) + 1)
elif len(N) == 6:
    print(9 + 900 + 90000)
Buggy code:
import sys
input = sys.stdin.readline
N = int(input())
ans = 0
while(True) :
    if N <= 9 :
        ans += N
        break
    else :
        ans += 9
    if N >= 100 :
        if N < 1000 :
            ans += N - 100 + 1
            break
        else :
            ans += 900
    else :
        break
    if N >= 10000 :
        ans += N - 10000 + 1
        break
    else :
        break
print(ans)

Fixed code:
import sys
input = sys.stdin.readline
N = int(input())
ans = 0
while(True) :
    if N <= 9 :
        ans += N
        break
    else :
        ans += 9
    if N >= 100 :
        if N < 1000 :
            ans += N - 100 + 1
            break
        else :
            ans += 900
    else :
        break
    if N >= 10000 :
        if N < 100000 :
            ans += N - 10000 + 1
            break
        else :
            ans += 90000
            break
    else :
        break
print(ans)