Buggy python submission (verdict: Runtime Error):
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
red_name = cr.most_common()[0][0]
red_count = cr.most_common()[0][1]
cb = collections.Counter(blue)
blue_name = cb.most_common()[0][0]
blue_count = cb.most_common()[0][1]

if blue_name == red_name:
  if red_count - blue_count < 0:
    if len(red)==1:
      print(0)
    else:
      print(cr.most_common()[1][1])
  else:
    print(red_count - blue_count)
else:
  print(red_count)

Fixed submission:
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
crs = list(cr.most_common())
cb = collections.Counter(blue)
cbs = list(cb.most_common())

result =[]

for i in range(len(cbs)):
  for j in range(len(crs)):
    if cbs[i][0]==crs[j][0]:
      result.append(crs[j][1]-cbs[i][1])
    else:
      flag = False
      count = 0
      for k in range(len(cbs)):
        if cbs[k].count(crs[j][0]) == 0:
          count+=1
      if count == len(cbs):
        result.append(crs[j][1])
        flag = False
        count = 0

if max(result)>0:
  print(max(result))
else:
  print(0)

Buggy python submission (verdict: Runtime Error):
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
red_name = cr.most_common()[0][0]
red_count = cr.most_common()[0][1]
cb = collections.Counter(blue)
blue_name = cb.most_common()[0][0]
blue_count = cb.most_common()[0][1]

if blue_name == red_name:
  if red_count - blue_count < 0:
    if len(red)==1:
      print(0)
    else:
      if cr.most_common()[1][0]==cb.most_common()[1][0]:
        if cr.most_common()[1][1]-cb.most_common()[1][1] > 0:
          print(cr.most_common()[1][1]-cb.most_common()[1][1])
      else:
        print(cr.most_common()[1][1])
  else:
    print(red_count - blue_count)
else:
  print(red_count)

Fixed submission:
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
crs = list(cr.most_common())
cb = collections.Counter(blue)
cbs = list(cb.most_common())

result =[]

for i in range(len(cbs)):
  for j in range(len(crs)):
    if cbs[i][0]==crs[j][0]:
      result.append(crs[j][1]-cbs[i][1])
    else:
      flag = False
      count = 0
      for k in range(len(cbs)):
        if cbs[k].count(crs[j][0]) == 0:
          count+=1
      if count == len(cbs):
        result.append(crs[j][1])
        flag = False
        count = 0

if max(result)>0:
  print(max(result))
else:
  print(0)

Buggy python submission (verdict: Runtime Error):
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
red_name = cr.most_common()[0][0]
red_count = cr.most_common()[0][1]
cb = collections.Counter(blue)
blue_name = cb.most_common()[0][0]
blue_count = cb.most_common()[0][1]

if blue_name == red_name:
  if red_count - blue_count < 0:
    if len(red)==1:
      print(0)
    else:
      if cr.most_common()[1][0]==cb.most_common()[1][0]:
        print(cr.most_common()[1][1]-cb.most_common()[1][1])
      else:
        print(cr.most_common()[1][1])
  else:
    print(red_count - blue_count)
else:
  print(red_count)

Fixed submission:
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
crs = list(cr.most_common())
cb = collections.Counter(blue)
cbs = list(cb.most_common())

result =[]

for i in range(len(cbs)):
  for j in range(len(crs)):
    if cbs[i][0]==crs[j][0]:
      result.append(crs[j][1]-cbs[i][1])
    else:
      flag = False
      count = 0
      for k in range(len(cbs)):
        if cbs[k].count(crs[j][0]) == 0:
          count+=1
      if count == len(cbs):
        result.append(crs[j][1])
        flag = False
        count = 0

if max(result)>0:
  print(max(result))
else:
  print(0)

Buggy python submission (verdict: Runtime Error):
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
red_name = cr.most_common()[0][0]
red_count = cr.most_common()[0][1]
cb = collections.Counter(blue)
blue_name = cb.most_common()[0][0]
blue_count = cb.most_common()[0][1]

if blue_name == red_name:
  if red_count - blue_count < 0:
    if len(red)==1:
      print(0)
    else:
      if cr.most_common()[1][0]==cb.most_common()[1][0]:
        print(cr.most_common()[1][0]-cb.most_common()[1][0])
      else:
        print(cr.most_common()[1][1])
  else:
    print(red_count - blue_count)
else:
  print(red_count)

Fixed submission:
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
crs = list(cr.most_common())
cb = collections.Counter(blue)
cbs = list(cb.most_common())

result =[]

for i in range(len(cbs)):
  for j in range(len(crs)):
    if cbs[i][0]==crs[j][0]:
      result.append(crs[j][1]-cbs[i][1])
    else:
      flag = False
      count = 0
      for k in range(len(cbs)):
        if cbs[k].count(crs[j][0]) == 0:
          count+=1
      if count == len(cbs):
        result.append(crs[j][1])
        flag = False
        count = 0

if max(result)>0:
  print(max(result))
else:
  print(0)

Buggy python submission (verdict: Runtime Error):
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
red_name = cr.most_common()[0][0]
red_count = cr.most_common()[0][1]
cb = collections.Counter(blue)
blue_name = cb.most_common()[0][0]
blue_count = cb.most_common()[0][1]

if blue_name == red_name:
  if red_count - blue_count < 0:
    if len(red)==1:
      print(0)
    else:
      print(cr.most_common()[1][1])
  else:
    print(red_count - blue_count)
else:
  print(red_count)

Fixed submission:
n = int(input())
red =[]
for i in range(n):
  l = str(input())
  red.append(l)

m = int(input())
blue =[]
for i in range(m):
  l = str(input())
  blue.append(l)
  
import collections

cr = collections.Counter(red)
crs = list(cr.most_common())
cb = collections.Counter(blue)
cbs = list(cb.most_common())

result =[]

for i in range(len(cbs)):
  for j in range(len(crs)):
    if cbs[i][0]==crs[j][0]:
      result.append(crs[j][1]-cbs[i][1])
    else:
      flag = False
      count = 0
      for k in range(len(cbs)):
        if cbs[k].count(crs[j][0]) == 0:
          count+=1
      if count == len(cbs):
        result.append(crs[j][1])
        flag = False
        count = 0

if max(result)>0:
  print(max(result))
else:
  print(0)