Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A.index(min(A_abs))
  A_abs[A_min] = A_min[A_min]*(-1)
  print(sum(A_abs))

Fixed submission:
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A_abs.index(min(A_abs))
  A_abs[A_min] = A_abs[A_min]*(-1)
  print(sum(A_abs))

Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A.index(min(A_abs))
  A_abs[A_min] = A[A_min]*(-1)
  print(sum(A_abs))

Fixed submission:
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A_abs.index(min(A_abs))
  A_abs[A_min] = A_abs[A_min]*(-1)
  print(sum(A_abs))

Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 || (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A.index(min(A_abs))
  A_abs[A_min] = A[A_min]*(-1)
  print(sum(A_abs))

Fixed submission:
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A_abs.index(min(A_abs))
  A_abs[A_min] = A_abs[A_min]*(-1)
  print(sum(A_abs))

Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 || count_m+count_z%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A.index(min(A_abs))
  A_abs[A_min] = A[A_min]*(-1)
  print(sum(A_abs))

Fixed submission:
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A_abs.index(min(A_abs))
  A_abs[A_min] = A_abs[A_min]*(-1)
  print(sum(A_abs))

Buggy python submission (verdict: Runtime Error):
N = int(input())
A = list(int(i) for i in input().split())
count = 0

for i in A:
  if i <= 0:
    count += 1

A_abs = [abs(i) for i in A]
if count%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A.index(min(A_abs))
  A_abs[A_min] = A[A_min]*(-1)
  print(sum(A_abs))
  

Fixed submission:
N = int(input())
A = list(int(i) for i in input().split())
count_m = 0
count_z = 0

for i in A:
  if i < 0:
    count_m += 1
  elif i == 0:
    count_z += 1

A_abs = [abs(i) for i in A]
if count_m%2 == 0 or (count_m+count_z)%2 == 0:
  print(sum(A_abs))
  
else:
  A_min = A_abs.index(min(A_abs))
  A_abs[A_min] = A_abs[A_min]*(-1)
  print(sum(A_abs))