ScienceSquare.py

import sys # Importing the great heavenly sys

matrix = [list(map(int, line.split())) for line in sys.stdin] # using map to use int on every single element of input, and then stuff it all in to an list
N = len(matrix) # getting the height of the matrix by just taking amount of rows

r0 = c0 = None # setting the coordinates of the 0 as nonexistent
for i in range(N): # for every single row
    try:
        r0, c0 = i, matrix[i].index(0) # try to set the index of an element 0
    except: # if such element does not exist, and as such raises an error
        pass # we just do not care and continue executing the code
    if r0 is not None: # end the loop if we found the 0
        break # anihilate the loop

for i in range(N): # get the first row
    if i != r0: # that does not include the 0 element
        target = sum(matrix[i]) # get it's sum
        break # and exit the loop

missing = target - sum(matrix[r0]) # get the value for the 0
matrix[r0][c0] = missing # set the value in to the matrix

def magic(mat): # function for checking if the matrix is made by a magician and as such magical (we do not have to have a function but why not lol)
    n = len(mat) # get the amount of rows of the matrix that was put in the argument
    t = sum(mat[0]) # get the sum of the first row
    for i in range(n): # iterate over each row
        if sum(mat[i]) != t or sum(mat[j][i] for j in range(n)) != t: # and check if sum of the row doesn't match the target sum, or if sum of column doesn't match
            return False # Destroy hopes and dreams
    if sum(mat[i][i] for i in range(n)) != t or sum(mat[i][n-1-i] for i in range(n)) != t: # check diagonals, if they sum up to the target or not
        return False # Destroy hopes and dreams #2
    return True # Confirm the hopes, and be optimistic :)

if magic(matrix): # call the newely baked function
    for r in matrix: # for each row in matrix
        print(*r) # explode the row and print the remains of it
else: # else
    print("Can't be magic") # and if the matrix ain't made by magician, then print it


# I hope it is not too many comments, my sleep schedule is already done for today, so might as well do more tasks