题解 | #密码验证合格程序#

while True:

    try:

        code = input()

        if len(code) < 8:

            print('NG')

            continue

        a, b, c, d = 0, 0, 0, 0

        for i in code:

            if ord('a') <= ord(i) <= ord('z'):

                a = 1

            elif ord('A') <= ord(i) <= ord('Z'):

                b = 1

            elif ord('0') <= ord(i) <= ord('9'):

                c = 1

            else:

                d = 1

        ty = a + b + c + d

        if a + b + c + d < 3:

            print('NG')

            continue

        repeat = 0

        for i in range(len(code) - 3):

            if len(code.split(code[i:i + 3])) > 2:

                repeat += 1

        if repeat > 0:

            print('NG')

            continue

        print('OK')

    except:

        break