题解 | #自守数#
自守数
https://www.nowcoder.com/practice/88ddd31618f04514ae3a689e83f3ab8e
n = int(input())
a = 0
for i in range(n+1):
if str(i) == str(i**2)[-len(str(i)):]:
a += 1
print(a)
#华为机试#
a = 0
for i in range(n+1):
if str(i) == str(i**2)[-len(str(i)):]:
a += 1
print(a)
#华为机试#