1024: [编程入门]矩阵对角线求和

解题思路:

注意事项:

参考代码:

a = [[0 for i in range(3)] for j in range(3)]
z = f = 0
for i in range(3):
   a[i] = input().split()
for i in range(3):
   z += int(a[i][i])
   f += int(a[i][2-i])
print(z,f)