Hello everyone! I’ve been trying to solve these errors for days, checked many other forum posts, and even substituted the spaces and new lines in my code to see what’s wrong with the spacing but to no avail.
Testing the exact same code on another repl.it site gave the correct output, but passing it into the test page didn’t 
If someone could point me out to the mistakes I’m making, I would thank you very very much!!
(Also I don’t know why but the indent seems to be a bit off here, sorry. This is the link to my repl.it: boilerplate-arithmetic-formatter - Replit
Thank you in advance!)
def arithmetic_arranger(problems, answer=False):
# getting that corner case
c = 0
for problem in problems:
c += 1
if c > 5:
return "Error: Too many problems."
break
# initiate stuff
one = []
two = []
d = []
ans = []
for problem in problems:
problem = problem.split(" ")
longest = 0
len1 = len(problem[0])
len2 = len(problem[2])
# getting the corner cases
if len1 > 4 or len2 > 4:
return "Error: Numbers cannot be more than four digits."
break
elif len1 > len2:
longest = len1
else:
longest = len2
longest += 2
try:
num1 = int(problem[0])
num2 = int(problem[2])
except ValueError:
return "Error: Numbers must only contain digits."
op = str(problem[1])
if op == "+":
res = num1 + num2
elif op == "-":
res = num1 - num2
elif op != "+" and op != "-":
return "Error: Operator must be '+' or '-'."
form_num1 = ' ' * (longest - len1) + str(num1)
form_num2 = str(op) + ' ' + ' ' * (longest - 2 - len2) + str(num2)
dashes = "-" * (longest)
res = str(res)
res = " " * (longest - len(res)) + res
one.append(form_num1)
two.append(form_num2)
d.append(dashes)
ans.append(res)
one = ' '.join(one)
two = ' '.join(two)
d = ' '.join(d)
ans = ' '.join(ans)
arranged_problems = f"{one}\n{two}\n{d}\n{ans}"
return arranged_problems
