def
matrix(n, m, li):
ctr
=
0
while
(ctr <
2
*
n
-
1
):
print
(
" "
*
abs
(n
-
ctr
-
1
), end
=
"")
lst
=
[]
for
i
in
range
(m):
for
j
in
range
(n):
if
i
+
j
=
=
ctr:
lst.append(li[i][j])
lst.reverse()
print
(
*
lst)
ctr
+
=
1
n
=
8
m
=
n
li
=
[[
4
,
5
,
6
,
9
,
8
,
7
,
1
,
4
],
[
1
,
5
,
9
,
7
,
5
,
3
,
1
,
6
],
[
7
,
5
,
3
,
1
,
5
,
9
,
8
,
0
],
[
6
,
5
,
4
,
7
,
8
,
9
,
3
,
7
],
[
3
,
5
,
6
,
4
,
8
,
9
,
2
,
1
],
[
3
,
1
,
6
,
4
,
7
,
9
,
5
,
0
],
[
8
,
0
,
7
,
2
,
3
,
1
,
0
,
8
],
[
7
,
5
,
3
,
1
,
5
,
9
,
8
,
5
]]
matrix(n, m, li)