题解 | #密码验证合格程序#

import re
import sys
def checkPassword(res):
	if len(res) <= 8:
		return "NG"
	for i in range(len(res) - 2):
		if res.count(res[i:i+3]) > 1:
			return "NG"

	pattern_digit = ".*[0-9]+.*"
	pattern_latter1 = ".*[a-z]+.*"
	pattern_latter2 = ".*[A-Z]+.*"
	pattern_others = ".*([^a-zA-Z0-9])+.*"
	count = 0
	if re.match(pattern_digit,res):
		# print(1)
		count += 1
	if re.match(pattern_latter1,res):
		# print(2)
		count += 1
	if re.match(pattern_latter2,res):
		# print(3)
		count += 1
	if re.match(pattern_others,res):
		# print(4)
		count += 1
	if count > 2:
		return "OK"
	else:
		return "NG"

input_line = input()
while input_line:
	try:
		print(checkPassword(input_line))
		input_line = input()
	except:
		break