Here is my code for the arithmetic arranger I think i got the errors right but sometimes the alignment gets messy and I don’t know why though. Your comments will be very helpful for me. Thank you very much.

```
def arithmetic_arranger(problems, second_arg=None):
upper_all = []
lower_all = []
lines_all = []
ans_all = []
if len(problems) <5:
for item in problems:
divided = item.split()
upper = divided[0]
operator = divided [1]
lower = divided[2]
line_length= max(len(divided[0]), len(divided[1])) + 2
lines = ''
for line in range(line_length):
lines += '-'
try:
if len(upper) < 5 and len(lower) < 5:
if operator == '+':
answer = str(int(upper) + int(lower))
elif operator == '-':
answer = str(int(upper) - int(lower))
else:
return "Error: Operator must be '+' or '-'."
else:
return "Error: Numbers cannot be more than four digits."
except:
return "Error: Numbers must only contain digits."
if second_arg == True:
upper_all.append(upper.rjust(line_length))
lower_all.append(operator + lower.rjust(line_length - 1))
lines_all.append(lines)
ans_all.append(answer.rjust(line_length))
else:
upper_all.append(upper.rjust(line_length))
lower_all.append(operator + lower.rjust(line_length - 1))
lines_all.append(lines)
else:
return "Error: Too many problems."
if second_arg == True:
return f"{' '.join(upper_all)}{chr(10)}{' '.join(lower_all)}{chr(10)}{' '.join(lines_all)}{chr(10)}{' '.join(ans_all)}"
else:
return f"{' '.join(upper_all)}{chr(10)}{' '.join(lower_all)}{chr(10)}{' '.join(lines_all)}"
```