백준 20112 사토르 마방진

https://www.acmicpc.net/problem/20112

20112번: 사토르 마방진

n = int(input())
l = [[] for _ in range(n)]

for i in range(n):
    inp = input()
    for j in inp:
        l[i].append(j)

l_rot = [['' for _ in range(n)] for _ in range(n)]   # 대칭
for i in range(n):
    for j in range(n):
        l_rot[j][i]=l[i][j]

if l == l_rot:
    print("YES")
else:
    print("NO")