qyliang/CodeNanoFix huggingface dataset:
Buggy code:
# -*- coding: utf-8 -*-

n = int(input())
fst = n % 10
snd = n / 10

if (fst == 9) | (snd == 9):
    print("Yes")
else :
    print("No")

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

n = int(input())
fst = n % 10
snd = n // 10

if (fst == 9) | (snd == 9):
    print("Yes")
else :
    print("No")
Buggy code:
if 9 in input():
  print("Yes")
else:
  print("No")

Fixed code:
if "9" in input():
  print("Yes")
else:
  print("No")
Buggy code:
a = input()
if a.count(9)==1 or a.count(9)==2:
  print("Yes")
else:
  print("No")



Fixed code:
a = str(input())
if a.count("9")==1 or a.count("9")==2:
  print("Yes")
else:
  print("No")
Buggy code:
n = input()

if n in "9":
  print("Yes")
else:
  print("No")

Fixed code:
n = input()
if '9' in n:
    print("Yes")
else:
    print("No")
Buggy code:
s = input()
if s in '9':
    print("Yes")
else:
    print("No")

Fixed code:
s = input()
if '9' in s:
    print("Yes")
else:
    print("No")
Buggy code:
N = list(input())
l = len(N)

for i in range(l):
  if(N[i] == '9'):
    print('yes')
    exit()
  else:
    continue
    
print('No')

Fixed code:
N = list(input())
l = len(N)

for i in range(l):
  if(N[i] == '9'):
    print('Yes')
    exit()
  else:
    continue
    
print('No')
Buggy code:
n=input()
for i in range(len(n)):
    if n[i] ==9:
        print('Yes')
        break
        else:
            print('No')


Fixed code:
a = input()
for i in range(len(a)):
   if a[i] == "9":
      print("Yes")
      break
else:
   print("No")
Buggy code:
l = list(input())
print("Yes") if l in "9" else print("No")

Fixed code:
l = list(input())
print("Yes") if "9" in l else print("No")
Buggy code:
import sys

stdin = sys.stdin

ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
ns = lambda: stdin.readline()

print("Yes" if "9" in ns else "No")


Fixed code:
import sys

stdin = sys.stdin

ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
ns = lambda: stdin.readline()

print("Yes" if "9" in ns() else "No")
Buggy code:
s=input()
print("Yes" if s/10==9 or s%10==9 else "No")

Fixed code:
s=int(input())
print("Yes" if s//10==9 or s%10==9 else "No")
Buggy code:
n = int(input())

if n / 10 == 9 or n % 10 == 9:
    print('Yes')
else:
    print('No')


Fixed code:
n = int(input())

if n // 10 == 9 or n % 10 == 9:
    print('Yes')
else:
    print('No')
Buggy code:
s = input()
print("Yes" if "9" in s else "No)

Fixed code:
s = input()
print("Yes" if "9" in s else "No")
Buggy code:
value = int(input())
if value / 10 == 9 or value % 10 == 9:
	print("Yes")
else:
	print("No")


Fixed code:
value = int(input())
if value // 10 == 9 or value % 10 == 9:
	print("Yes")
else:
	print("No")
Buggy code:
N = input()
count = N.count(9)
if count >= 1:
    print("Yes")
else:
    print("No")
    

Fixed code:
N = input()
count = N.count("9")
if count >= 1:
    print("Yes")
else:
    print("No")
Buggy code:
n = int(input())
t = n // 10
n -= t
if t==9:
    print('Yes')
elif n == 9:
    print('Yes')
else:
    print('No')


Fixed code:
n = int(input())
t = n // 10
n -= t*10
if t==9:
    print('Yes')
elif n == 9:
    print('Yes')
else:
    print('No')
Buggy code:
a = input()
a.find("9")
if a !== -1:
    print("Yes")
else:
    print("No")

Fixed code:
a = input()
if a.find("9") != -1:
    print("Yes")
else:
    print("No")
Buggy code:
# ABC073A - September 9
def main():
    N = input().rstrip()
    flg = "g" in N
    print("Yes" if flg else "No")


if __name__ == "__main__":
    main()

Fixed code:
# ABC073A - September 9
def main():
    N = input().rstrip()
    flg = "9" in N
    print("Yes" if flg else "No")


if __name__ == "__main__":
    main()
Buggy code:
print(['Yes','No']['9'in input()])

Fixed code:
print(['No','Yes']['9'in input()])
Buggy code:
import sys

N = int(sys.stdin.readline())
n1 = N % 10
n2 = int((N - n1) / 10)

if n1 == 9 or n2 == 9:
    print('Yes')
else:
    print('NO')


Fixed code:
import sys

N = int(sys.stdin.readline())
n1 = N % 10
n2 = int((N - n1) / 10)

if n1 == 9 or n2 == 9:
    print('Yes')
else:
    print('No')
Buggy code:
a=input()
if a in '9':
  print('Yes')
else:
  print('No')

Fixed code:
a=input()
if '9' in a:
  print('Yes')
else:
  print('No')
Buggy code:
N = int(input())
if int(N/10)==9:
        print("Yes")
    elif int(((N-9)%10)) == 0:
        print("Yes")
    else:
        print("No")

Fixed code:
N = int(input())
if int(N/10)==9:
    print("Yes")
elif int(((N-9)%10)) == 0:
    print("Yes")
else:
    print("No")
Buggy code:
a=int(input())
if a in int(9):
  print("Yes")
else:
  print("No")

Fixed code:
a=input()

if "9" in a:
  print("Yes")
else:
  print("No")
Buggy code:
num = int(input())
if num % 10 == 9 or num / 10 == 9:
    print("Yes")
else:
    print("No")

Fixed code:
num = int(input())
if num % 10 == 9 or num // 10 == 9:
    print("Yes")
else:
    print("No")
Buggy code:
n = int(input())
if 9 in n:
    print('Yes')
else:
    print('No')

Fixed code:
n = input()

if '9' in n:
    print("Yes")
else:
    print("No")
Buggy code:
a = input()
if 9 in a:
  print('Yes')
else:
  print('No')

Fixed code:
a = input()
if '9' in a:
    print("Yes")
else:
    print("No")
Buggy code:
a=int(input())
b=a%10
if int(a/10)==9:
  print("Yes")
else:
  if b==9:
    print("Yes")
    else:
      print("No")

Fixed code:
a=int(input())
b=a%10
if int(a/10)==9:
  print("Yes")
else:
  if b==9:
    print("Yes")
  else:
    print("No")
Buggy code:
n = str(input())
cnt = 0
for i in n:
  if n == "9":
    cnt += 1
if cnt >= 1:
    print("Yes")
else:
    print("No")

Fixed code:
n = str(input())
cnt = 0
for i in n:
    if i == "9":
       cnt += 1
if cnt >= 1:
    print("Yes")
else:
    print("No")
Buggy code:
a = input()
if a in '9':
  print('Yes')
else:
  print('No')

Fixed code:
a=input()
if '9' in a:
  print('Yes')
else:
  print('No')
Buggy code:

n = int(input())

a = n/10
b = n%10
if a == 9 or b == 9:
    print("Yes")
else:
    print("No")



Fixed code:
i = int(input())
a = int(i/10)
b = i%10
if a == 9 or b == 9:
    print("Yes")
else:
    print("No")
Buggy code:
l = list(input())

for i in l:
    if i == "9":
        print("Yes")
    else:
        print("No")


Fixed code:
l = list(input())
for i in l:
    if i == "9":
        print("Yes")
        break
else:
    print("No")
Buggy code:
if input().find("9")>-1:
  print("Yes")
  else:
    print("No")

Fixed code:
if input().find('9')>-1:
  print("Yes")
else:
    print("No")
Buggy code:
print('YNeos'['9' not in input()::])

Fixed code:
print('YNeos'['9' not in input()::2])
Buggy code:
s = list(input())
if '9' in li:
  print('Yes')
else:
  print('No')

Fixed code:
li = list(input())
if '9' in li:
  print('Yes')
else:
  print('No')
Buggy code:
print('Yes' if '9' in list(input(())) else 'No')

Fixed code:
print("Yes"if'9'in list(input())else"No")
Buggy code:
print('Yes' if '9' in 9list(input(())) else 'No')

Fixed code:
print ("Yes" if '9' in input() else "No")
Buggy code:
N=int(input())
print(['No','Yes'][9 in [N%10, (N-N%10)//10]]

Fixed code:
N=int(input())
print(['No','Yes'][9 in [N%10, (N-N%10)//10]])
Buggy code:
N = int(input())
a = N/10
b = N%10
if a == 9  b == 9:
  print('Yes')
else:
  print('No')


Fixed code:
N = int(input())
a = int(N/10)
b = N%10
#print(N)
#print(a)
#print(b)
if a == 9 or b == 9:
  print('Yes')
else:
  print('No')
Buggy code:
N = input()
if N in 9:
  print("Yes")
else print("No")


Fixed code:
N = input()
if '9' in N:
  print("Yes")
else:
  print("No")
Buggy code:
N=input();N_list=list(str());print(['Yes','No']['9' in N_list])


Fixed code:
N=input();N_list=list(N);print(['No','Yes']['9' in N_list])
Buggy code:
n=input()
a=0
for i in range(len(n)):
	if n[i]=="9":
    	a+=1
if a!=0:
	print("Yes")
else:
	print("No")

Fixed code:
n=input()
a=0
for i in range(len(n)):
    if n[i]=="9":
        a+=1
if a!=0:
    print("Yes")
else:
    print("No")
Buggy code:
n = input()
if 9 in n:
    print("Yes")
else:
    print("No")

Fixed code:
n = list(input())
if "9" in n:
    print("Yes")
else:
    print("No")
Buggy code:
s=input()
ans=False
for i in s:
  if i=='9':
    ans=False

if ans:
  print('Yes')
else :
    print('No')

Fixed code:
s=input()
ans=False
for i in s:
  if i=='9':
    ans=True

if ans:
  print('Yes')
else :
    print('No')
Buggy code:
N = input()
if "9" in N:
  print("Yes")
else:
  print("No)

Fixed code:
N=input()

if '9' in N:
    print('Yes')
else:
    print('No')
Buggy code:
n=int(input())
if (n/10==9 or n%10==9):
	 print("Yes")
else :
	print("No")


Fixed code:
n = int(input())
if n%10 == 9 or n//10 == 9:
    print("Yes")
else:
    print("No")
Buggy code:
x=int(input())

if x==9 or x//10==9:
    print("Yes")
else:
    print("No")  

Fixed code:
x=int(input())

if x==9 or x//10==9 or x%10==9:
    print("Yes")
else:
    print("No")
Buggy code:
a = input()
if 9 in a:
  print("Yes")
else:
  print("No")

Fixed code:
a = input()
if str(9) in a:
  print("Yes")
else:
  print("No")
Buggy code:
n = int(input())
if n%10==9 or n//10==9:
  print('Yes')
else;
print('No')

Fixed code:
n = int(input())
if n%10==9 or n//10==9:
  print('Yes')
else:
  print('No')
Buggy code:
N=map(int,input().replace("",",").split())
if 9 in N:
    print("Yes")
else:
    print("No")


Fixed code:
N=map(str,input().replace(""," ").split())
if "9" in N:
    print("Yes")
else:
    print("No")
Buggy code:
n=int(input())

if n in 9:
  print('Yes')
else:
  print('No')

Fixed code:
n = input()
if '9' in n :
    print('Yes')
else:
    print('No')
Buggy code:
s=input()
if "9" in s:
    print("Yes")
else:
    print("No"

Fixed code:
s=input()
if "9" in s:
    print("Yes")
else:
    print("No")
Buggy code:
N = input()
if N in "9":
  print("Yes")
else:
  print("No")

Fixed code:
N = input()
if "9" in N:
  print("Yes")
else:
  print("No")
Buggy code:
    if [1 for c in input() if c == '9']:
        print('Yes')
    else:
        print('No')

Fixed code:
if [1 for c in input() if c == '9']:
    print('Yes')
else:
    print('No')
Buggy code:
a = int(input())
print("Yes" if 9 in a else "No")

Fixed code:
a = input()
print("Yes" if "9" in a else "No")
Buggy code:
n=input()
n=int(n)
og=n
flag=0
while(n>0):
    d=n%10
    n=n//10
    if(d==7):
        flag=flag+1
        
if(flag>0):
    print("Yes")
else:
    print("No")
    
          
          

    


Fixed code:
n=input()
n=int(n)
og=n
flag=0
while(n>0):
    d=n%10
    n=n//10
    if(d==9):
        flag=flag+1
        
if(flag>0):
    print("Yes")
else:
    print("No")
Buggy code:
n = input()
if n in '9':
    print('Yes')
else:
    print('No')

Fixed code:
n = input()
if '9' in n:
    print("Yes")
else:
    print("No")
Buggy code:
N = str(input())
if N in "9":
  print("Yes")
else:
  print("No")

Fixed code:
N=list(str(input()))
if "9" in N:
	print("Yes")
else:
	print("No")
Buggy code:
n=int(input())
if n/10==9 or n%10==9:
    print("Yes")
else:
    print("No")

Fixed code:
n=int(input())
if int(n/10)==9 or n%10==9:
    print("Yes")
else:
    print("No")
Buggy code:
# -*- coding: utf-8 -*-
a = int(input())
flg = 0
while a > 0:
	if a % 10 == 9:
		print("Yes")
		flg = 1
		break
	else:
		a = a / 10
if flg == 0:
	print("No")

Fixed code:
# -*- coding: utf-8 -*-
a = int(input())
flg = 0
while a > 0:
	if a % 10 == 9:
		print("Yes")
		flg = 1
		break
	else:
		a = int(a / 10)
if flg == 0:
	print("No")
Buggy code:
n = input()
nlist =list(n)

if 9 in nlist:
    print("Yes")
else:
    print("No")


Fixed code:
n = list(input())

if '9' in n:
    print("Yes")
else:
    print("No")
Buggy code:
N=input()
if N.count(9)>=1:
  print("Yes")
else:
  print("No")


Fixed code:
N=input()
if N.count("9")>=1:
  print("Yes")
else:
  print("No")
Buggy code:
N = int(input())

if 9 in N :
    print("Yes")
else :
    print("No")

Fixed code:
N = input()

if '9' in N:
  print("Yes")
else:
  print("No")
Buggy code:
c = input()
if c in "9":
  print("Yes")
else:
  print("No")

Fixed code:
c = input()
if "9" in c:
  print("Yes")
else:
  print("No")
Buggy code:
a =int(input())
if "9" in a:
  print("Yes")
else:
  print("No")

Fixed code:
a =input()
if "9" in a:
  print("Yes")
else:
  print("No")
Buggy code:
n = input()
if n in '9':
	print('Yes')
else:
	print('No')

Fixed code:
n = input()
if '9' in n:
	print('Yes')
else:
	print('No')
Buggy code:
#n = int(input())
#n,k = map(int,input().split())
#x = list(map(int,input().split()))

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

if (n//10 == 9) or (n%10==9):
    print("Yes")
else:
    print("No")

Fixed code:
#n = int(input())
#n,k = map(int,input().split())
#x = list(map(int,input().split()))

n = int(input())



if (n//10 == 9) or (n%10==9):
    print("Yes")
else:
    print("No")
Buggy code:
a = int(input())
if a//10=9:
  print("Yes")
elif a%10=9:
  print("Yes")
else: 
  print("No")

Fixed code:
a = int(input())
if a//10 == 9:
  print("Yes")
elif a % 10 == 9:
  print("Yes")
else:
  print("No")
Buggy code:
a=int(input())
if a/10==9 or a%10==9:
    print("Yes")
else:
    print("No")  

Fixed code:
a=int(input())
if a//10==9 or a%10==9:
    print("Yes")
else:
    print("No")
Buggy code:
n=str(input())
print('Yes' if 9 in n else "No")

Fixed code:
n = input()
print("Yes" if "9" in n else "No")
Buggy code:
if input() in '9':
  print('Yes')
else:print('No')

Fixed code:
print("Yes" if "9"in input() else "No")
Buggy code:
n = input()
found = 0
for i in n:
        if i == "9":
                print("Yes")
                found = 1
                break

if(!found):
        print("No")


Fixed code:
n = input()
found = 0
for i in n:
        if i == "9":
                print("Yes")
                found = 1
                break

if(not found):
        print("No")
Buggy code:
a = int(input())

if a%10 == 9:
    print("Yes")
elif a/10 == 9:
    print("Yes")
else:
    print("No")

Fixed code:
a = int(input())

if a%10 == 9:
    print("Yes")
elif int(a/10) == 9:
    print("Yes")
else:
    print("No")
Buggy code:
x = int(input())

if x % 10 == 9 or x / 10 == 9:
	print("Yes")
else:
	print("No")



Fixed code:
x = int(input())

if x % 10 == 9 or x // 10 == 9:
	print("Yes")
else:
	print("No")
Buggy code:
N == int(input())
if N//10==9 or N%10==9: print('Yes')
else: print('No')

Fixed code:
N = int(input())
if N//10==9 or N%10==9: print('Yes')
else: print('No')
Buggy code:
a = int(input())
print(["No", "Yes"][a//10 == 9 or a%10 == 9]

Fixed code:
a = int(input())
print(["No", "Yes"][a//10 == 9 or a%10 == 9])
Buggy code:
n=input()
if n%10==9 or n//10==9:
    print("Yes")
else:
    print("No")


Fixed code:
n=int(input())
if n%10==9 or n//10==9:
    print("Yes")
else:
    print("No")
Buggy code:
n=input()
if n.find("9") > 0:
    print("Yes")
else:
    print("No")

Fixed code:
n=input()
if n.find("9") >= 0:
    print("Yes")
else:
    print("No")
Buggy code:
N = int(input())
if "9" in N:
  print("Yes")
else:
  print("No")

Fixed code:
N = input()

if ("9" in N):
    print("Yes")
else:
    print("No")
Buggy code:
n = input()
if 9 in n:
  print("Yes")
else:
  print("No")
    

Fixed code:
n = input()
print('Yes' if '9' in n else 'No')
Buggy code:
n = int(input())
if '9' in n:
  print('Yes')
else:
  print('No')
  

Fixed code:
n=input()
if "9"in n:print("Yes")
else:print("No")
Buggy code:
N = int(input())

if (N % 10) == 9 or (N/10) == 9:
    print("Yes")
else:
    print("No")

Fixed code:
N = int(input())
print("Yes" if (int(N/10)==9 or (N%10)==9) else "No")
Buggy code:
import sys

stdin = sys.stdin
 
ri = lambda: int(rs())
rl = lambda: list(map(int, stdin.readline().split()))
rs = lambda: stdin.readline().rstrip()  # ignore trailing spaces

N = ri()
print('Yes' if str(N).find('9') else 'No')


Fixed code:
import sys

stdin = sys.stdin
 
ri = lambda: int(rs())
rl = lambda: list(map(int, stdin.readline().split()))
rs = lambda: stdin.readline().rstrip()  # ignore trailing spaces

N = ri()
print('Yes' if str(N).find('9') >= 0 else 'No')
Buggy code:
s = input()
if s in '9':
  print('Yes')
 else:
  print('No')

Fixed code:
s = input()
if '9' in s:
  print('Yes')
else:
  print('No')
Buggy code:
n = int(input())

a = n//10

b = n-a*10

if a==9 or b==9:
  print("Yes")

else:
  pront("No")

Fixed code:
n = int(input())

a = n//10

b = n-a*10

if a==9 or b==9:
  print("Yes")

else:
  print("No")
Buggy code:
n = int(input())
if n / 10 == 9 or n % 10 == 9:
  print("Yes")
else :
  print("No")  


Fixed code:
n=int(input())
if n%10==9 or n//10==9:
  print('Yes')
else:
  print('No')
Buggy code:
a = int(input())
b = a // 10
c= a % 10

if b == 9 or c == 9
 print("Yes")
 else
  print("No")


Fixed code:
a = int(input())
b = a // 10
c = a % 10

if b == 9 or c == 9 :
	print("Yes")
else :
	print("No")
Buggy code:

def main():
    n = int(input())
    if n / 10 == 9 or n % 10 == 9:
        print('Yes')
    else:
        print('No')


if __name__ == "__main__":
    main()


Fixed code:

def main():
    n = int(input())
    if n // 10 == 9 or n % 10 == 9:
        print('Yes')
    else:
        print('No')


if __name__ == "__main__":
    main()
Buggy code:
N=int(input())
if N%10==9 or N%10==9:
    print("Yes")
else:
    print("No")

Fixed code:
N = int(input())
if N%10 == 9 or N//10 == 9:
  print("Yes")
else:
  print("No")
Buggy code:
n = input()
if "9" in n:
    print("Yes")
else:
    print(No)

Fixed code:
n=input()
if '9' in n:
    print('Yes')
else:
    print('No')
Buggy code:
n=int(input())
if 9 in n:
print("Yes")
else: 
print("No")

Fixed code:
n=input()
if "9" in n :
    print("Yes")
else:
    print("No")
Buggy code:
N = input()
for i in N:
    if i == 9:
        print('Yes')
        exit()
print('No')


Fixed code:
N = input()
for i in N:
    if i == '9':
        print('Yes')
        exit()
print('No')
Buggy code:
s=str(input())

f=0
for a in s:
    if a=='9':
        f=1
if f==1:
    print('Yes')
else:
    print('NO')

Fixed code:
s=str(input())

f=0
for a in s:
    if a=='9':
        f=1
if f==1:
    print('Yes')
else:
    print('No')
Buggy code:
if input() in "9":
  print("Yes")
else:
  print("No")

Fixed code:
if "9" in input():
  print("Yes")
else:
  print("No")
Buggy code:
N = list(input())

if N in '9':
    print('Yes')
else:
    print('No')

Fixed code:
N = input()
if "9" in N:
  print("Yes")
else:
  print("No")
Buggy code:
N = int(input())
if '9' in N:
  print('Yes')
else:
  print('No')

Fixed code:
N = input()

if '9' in N:
    print('Yes')
else:
    print('No')
Buggy code:
N = int( input() )
S = [ list( map( int, input().split() ) ) ]

ans = 0
for i in S:
    ans += i[1] - i[0] + 1

print( ans )

Fixed code:
N = int( input() )
S = [ list(map( int, input().split() )) for _ in range(N) ]

ans = 0
for i in S:
    ans += i[1] - i[0] + 1

print( ans )
Buggy code:
N = int(input())
for i in range(N):
    l,r = map(int, input().split())
    ans += r - l + 1
print(ans)

Fixed code:
N = int(input())
ans = 0
for i in range(N):
    l,r = map(int, input().split())
    ans += r - l + 1
print(ans)
Buggy code:
import numpy as np

read = sys.stdin.buffer.read

n = int(input())
p = np.array(read().split(), dtype=np.int64).reshape(-1,2)

ans = np.sum((p[:,1]-p[:,0])+1)
print(ans)

Fixed code:
import sys
import numpy as np

read = sys.stdin.read

n = int(input())
p = np.array(read().split(), dtype=np.int64).reshape(-1,2)

ans = np.sum((p[:,1]-p[:,0])+1)
print(ans)
Buggy code:
print(sum(1-eval(input().replace(' ','-')), for _ in range(int(input())))

Fixed code:
print(sum(1-eval(input().replace(' ', '-')) for _ in range(int(input()))))
Buggy code:
n = int(input())
box = []
for i in range(n):
    box = list(map(int, input().split()))

cnt = 0
for i in range(n):
    cnt += int(box[-1]) - int(box[0]) + 1

print(cnt)

Fixed code:
n = int(input())
box = [list(map(int, input().split())) for i in range(n)]
cnt = 0

for i in range(n):
    cnt += box[i][-1] - box[i][0] + 1

print(cnt)
Buggy code:
N=input()
now=0
for i in range(0,N):
    lr=(input()).split(' ')
    now=now+((int)(lr[1])-(int)(lr[0])+1)

print(now)

Fixed code:
N=input()
now=0
for i in range(0,(int)(N)):
    lr=(input()).split(' ')
    now=now+((int)(lr[1])-(int)(lr[0])+1)

print(now)
Buggy code:
n = int(input())
lr = [map(int,input().split()) for l in range(n)]
ans = 0
for i in lr:
  ans += lr[i][1] - lr[i][0]+1
print(ans)

Fixed code:
n = int(input())
lr = [list(map(int,input().split())) for l in range(n)]
ans = 0
for i in range(len(lr)):
  ans += (lr[i][1] - lr[i][0])+1
print(ans)
Buggy code:
N=int(input())
l=0
for i in range(N):
    r,l=(int(x) for x in input().split())
    l+=(r-l)

print(l)


Fixed code:
N=int(input())
m=0
for i in range(N):
    l,r=(int(x) for x in input().split())
    m+=(r-l+1)

print(m)
Buggy code:
n = int(input())
lr = [[int(i) for i in input().split()] for j in range(n)]
ans = 0
for i in range(n):
    ans += lr[i][1] - lr[i][0]
print(ans)

Fixed code:
n = int(input())
lr = [[int(i) for i in input().split()] for j in range(n)]
ans = 0
for i in range(n):
    ans += lr[i][1] - lr[i][0]+1
print(ans)
Buggy code:
n=int(input())

ans=0

for i in range(n):
    l,r=map(int,input())
    ans+=r-l+1

print(ans)

Fixed code:
n=int(input())

ans=0

for i in range(n):
    l,r=map(int,input().split())
    ans+=r-l+1

print(ans)
Buggy code:
N=int(input())
answer=0
for i in range(N):
  l,r = map(input().split())
  answer+=r-l+1
print(answer)

Fixed code:
N=int(input())
answer=0
for i in range(N):
  l,r = map(int,input().split())
  answer+=r-l+1
print(answer)
Buggy code:
N = int(input())
ans = 0
for _ in range(N):
    l, r = map(int,input().split())
    ans = r - l + 1
print(ans)

Fixed code:
N = int(input())
ans = 0
for _ in range(N):
    l, r = map(int,input().split())
    ans += r - l + 1
print(ans)
Buggy code:
n = int(input())

answer = 0
for i in range(n):
  a, b = map(int, input().split())
  if a == b:
    answer += 1
  else:
    answer += b - a
  
print(answer)

Fixed code:
n = int(input())

answer = 0
for i in range(n):
  a, b = map(int, input().split())
  answer += (b + 1) - a
  
print(answer)
Buggy code:
n = input()
c = 0 
for _ in range(n):
  n,m = map(int,input().split())
  count += m-n+1
print(count)

Fixed code:
n = int(input())
c = 0 
for _ in range(n):
  n,m = map(int,input().split())
  c += m-n+1
print(c)
Buggy code:
N = int(input())
ans = 0
for i in range(N):
  A, B = map(int, input().split())
  ans = B - A +1
  
print(ans)

Fixed code:
N = int(input())
ans = 0
for i in range(N):
  A, B = map(int, input().split())
  ans += B - A +1
  
print(ans)
Buggy code:
N = input()
ans = 0
for i in range(N):
	j,k = map(int,input().split())
	ans += r - l + 1
print(ans)

Fixed code:
N = int(input())
ans = 0
for i in range(N):
	j,k = map(int,input().split())
	ans += k - j + 1
print(ans)
Buggy code:
n=int(input())
kei=0
for i in range(n):
    l,r=map(int,input().split())
    kei += sum(r)-sum(l)
kei += n
print(kei)

Fixed code:
n=int(input())
kei=0
for i in range(n):
    l,r=map(int,input().split())
    kei += r-l+1
print(kei)
Buggy code:
N=int(input())
ans=0
for i in range(N):
l,r=map(int,input().split())
ans+=r-l+1
print(ans)

Fixed code:
N=int(input())
ans=0
for i in range(N):
	l,r=map(int,input().split())
	ans+=r-l+1
print(ans)
Buggy code:
n = int(input())
ans = 0
for i in range(n):
  a,b = map(int,input().split())
  ans += b-a-1
  
print(ans)  

Fixed code:
n=int(input())
ans=0
for i in range(n):
  a,b=map(int,input().split())
  ans+=1-a+b

print(ans)
Buggy code:
n = int(input())
ans = 0
for i in range(n):
   l, r = map(int, input().split())
   del = r-l
   ans += del

print(ans)

Fixed code:
n = int(input())
ans = 0
for i in range(n):
   l, r = map(int, input().split())
   ans += r-l+1

print(ans)
Buggy code:
N=int(input())
X=0
for i in range(N):
  l,n=map(int,input().split())
  x+=l-n+1
print(X)

Fixed code:
N=int(input())
X=0
for i in range(N):
  l,n=map(int,input().split())
  X+=n-l+1
print(X)
Buggy code:
def read_input():
    n = int(input())

    sheets = []
    for i in range(n):
        l, r = map(int, input().split())
        sheets.append((l, r))

    return n, sheets

def submit():
    n, sheets = read_input()

    watcher = 0
    for sheet in sheets:
        watcher += sheet[1] - sheet[0] + 1

    print(watcher)


if __name__ == '__main__':
    submit

Fixed code:
def read_input():
    n = int(input())

    sheets = []
    for i in range(n):
        l, r = map(int, input().split())
        sheets.append((l, r))

    return n, sheets

def submit():
    n, sheets = read_input()

    watcher = 0
    for sheet in sheets:
        watcher += sheet[1] - sheet[0] + 1

    print(watcher)


if __name__ == '__main__':
    submit()