Help in Magic Square Palindrome

help
,
1

Can anyone help me with the code for the following question?
UVA Magic Square Palindrome

And this is my code for it. I have got Wrong Answer in it.

import string
from math import sqrt,modf

def trans(s):
p=s.maketrans(string.punctuation+string.ascii_uppercase," "*len(string.punctuation)+string.ascii_lowercase)
return s.translate(p)

for test in range(0,int(input())):
matrix=(trans(input())).split()
s=“”.join(matrix)

if (modf(sqrt(len(s))))[0]==0: #modf returns (decimal part,integer)
    if s==s[::-1]:
            s_left=""
            for a in range(0,len(matrix)):
                for b in range(0,len(matrix[a])):
                    s_left+=matrix[a][b]
            if s_left==s_left[::-1]:
                print('Case #{}:'.format(test+1))
                print(round(sqrt(len(s))))
else:
    print('Case #{}:'.format(test+1))
    print('No magic :(')