Tukukkk

#!/bin/python3



import math

import os

import random

import re

import sys



# Complete the diagonalDifference function below.

def diagonalDifference(arr):

    sum_diag1 = 0

    sum_diag2 = 0

    arr_2d = 

    print(arr)



    for i in range(len(arr)):

        for j in range(len(arr)):

            if i==j:

                sum_diag1 += arr[i][j]

            elif i+j == (len(arr)) - 1:

                sum_diag2 += arr[i][j]

                print(arr[i][j])





    return abs(sum_diag1 - sum_diag2)



if __name__ == '__main__':

    fptr = open(os.environ['OUTPUT_PATH'], 'w')



    n = int(input())



    arr = 



    for _ in range(n):

        arr.append(list(map(int, input().rstrip().split())))



    result = diagonalDifference(arr)



    fptr.write(str(result) + 'n')



    fptr.close()

#!/bin/python3



import math

import os

import random

import re

import sys



# Complete the diagonalDifference function below.

def diagonalDifference(arr):

    sum_diag1 = 0

    sum_diag2 = 0

    arr_2d = 

    print(arr)



    for i in range(len(arr)):

        for j in range(len(arr)):

            if i==j:

                sum_diag1 += arr[i][j]

            elif i+j == (len(arr)) - 1:

                sum_diag2 += arr[i][j]

                print(arr[i][j])





    return abs(sum_diag1 - sum_diag2)



if __name__ == '__main__':

    fptr = open(os.environ['OUTPUT_PATH'], 'w')



    n = int(input())



    arr = 



    for _ in range(n):

        arr.append(list(map(int, input().rstrip().split())))



    result = diagonalDifference(arr)



    fptr.write(str(result) + 'n')



    fptr.close()

#!/bin/python3



import math

import os

import random

import re

import sys



# Complete the diagonalDifference function below.

def diagonalDifference(arr):

    sum_diag1 = 0

    sum_diag2 = 0

    arr_2d = 

    print(arr)



    for i in range(len(arr)):

        for j in range(len(arr)):

            if i==j:

                sum_diag1 += arr[i][j]

            elif i+j == (len(arr)) - 1:

                sum_diag2 += arr[i][j]

                print(arr[i][j])





    return abs(sum_diag1 - sum_diag2)



if __name__ == '__main__':

    fptr = open(os.environ['OUTPUT_PATH'], 'w')



    n = int(input())



    arr = 



    for _ in range(n):

        arr.append(list(map(int, input().rstrip().split())))



    result = diagonalDifference(arr)



    fptr.write(str(result) + 'n')



    fptr.close()

#!/bin/python3



import math

import os

import random

import re

import sys



# Complete the diagonalDifference function below.

def diagonalDifference(arr):

    sum_diag1 = 0

    sum_diag2 = 0

    arr_2d = 

    print(arr)



    for i in range(len(arr)):

        for j in range(len(arr)):

            if i==j:

                sum_diag1 += arr[i][j]

            elif i+j == (len(arr)) - 1:

                sum_diag2 += arr[i][j]

                print(arr[i][j])





    return abs(sum_diag1 - sum_diag2)



if __name__ == '__main__':

    fptr = open(os.environ['OUTPUT_PATH'], 'w')



    n = int(input())



    arr = 



    for _ in range(n):

        arr.append(list(map(int, input().rstrip().split())))



    result = diagonalDifference(arr)



    fptr.write(str(result) + 'n')



    fptr.close()

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