题解 | #密码验证合格程序#

while True:
    try:
        s = input()
        if len(s) < 9:
            print("NG")
            continue
        if s.isalnum():
            if s.isdigit():
                print("NG")
                continue
            elif s.isalpha():
                print("NG")
                continue
            elif s.isupper() or s.islower():
                print("NG")
                continue
        else:
            if s.isdigit():
                print("NG")
                continue
            elif s.isalpha() and (s.islower or s.isupper()):
                print("NG")
                continue
        tags = 0
        for i in range(0, len(s) - 2):
            if s[i : i + 3] in s[i + 1 :]:
                tags = 1
                break
        if tags == 1:
            print("NG")
        else:
            print("OK")

    except:
        break