题解 | 单组_二维字符数组
a, b = map(int, input().split())
char_array = ['*'*b for _ in range(a)]
for i in range(a):
char_array[i] = input()
for i in range(a-1, -1, -1):
for j in range(b-1, -1, -1):
print(char_array[i][j], end='')
print('')
