HackerRank Triangle Quest 2

###给你一个正整数n，例如n=5，则输出：

1
121
12321
1234321
123454321

###思路：这就是1，11,111,1111...的平方，题目不让用字符串做，或者代码不能超过一行见代码：

for i in range(1,int(input())+1): #More than 2 lines will result in 0 score. Do not leave a blank line also
    print((10 ** i // 9) ** 2)

若可以用字符串：

for i in range(1,int(input())+1): #More than 2 lines will result in 0 score. Do not leave a blank line also
    print(*(list(range(1, i)) + (list(range(i, 0, -1)))), sep = "")