**Tell us what’s happening:**

Describe your issue in detail here.

It’s telling me that my output is wrong but I am not sure where did I make a mistake

because when I am comparing the output, it looks the same as mine. May I know what is wrong in my code here?

**Your code so far**

```
def arithmetic_arranger(problems,chk = False):
sign = ""
val = problems
ln = len(val)
if ln > 5:
return "Error: Too many problems."
fline = ""
sline = ""
dline = ""
ansline = ""
for i in val:
first = i.split()
num1 = first[0]
num2 = first[2]
len1 = len(num1)
len2 = len(num2)
try:
num1 = int(first[0])
num2 = int(first[2])
except:
print("")
return "Error: Numbers must only contain digits."
if(num1/1000 > 10):
return "Error: Numbers cannot be more than four digits."
elif(num2/1000 > 10):
return "Error: Numbers cannot be more than four digits."
if(first[1]!='+'):
if(first[1]!='-'):
return "Error: Operator must be '+' or '-'."
else:
sum = num1 - num2
sign = '-'
else:
sum = num1 + num2
sign = "+"
str_ans = str(sum)
len3 = len(str_ans)
if len1 > len2 :
sp2 = " "*(len1-len2+1)
dash = "-"*(len1+2)
sp3 = " "*(len1+2-len3)
if(i==val[len(val)-1]):
fline += f" {num1}"
sline += f"{sign}{sp2}{num2}"
dline += f"{dash}"
if chk is True:
ansline += f"{sp3}{sum}"
else:
fline += f" {num1} "
sline += f"{sign}{sp2}{num2} "
dline += f"{dash} "
if chk is True:
ansline += f"{sp3}{sum} "
else:
sp1 = " "*(len2-len1+2)
dash = "-"*(len2+2)
sp3 = " "*(len2+2-len3)
if(i==val[len(val)-1]):
fline += f"{sp1}{num1}"
sline += f"{sign} {num2}"
dline += f"{dash}"
if chk is True:
ansline += f"{sp3}{sum}"
else:
fline += f"{sp1}{num1} "
sline += f"{sign} {num2} "
dline += f"{dash} "
if chk is True:
ansline += f"{sp3}{sum} "
# print(fline+"\n"+sline+"\n"+dline+"\n"+ansline)
result = f"{fline}\n{sline}\n{dline}\n{ansline}"
return result
```

** error image**

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**Challenge:** Arithmetic Formatter

**Link to the challenge:**