def password_score(password):
    score = 0

    if len(password) < 6:
        return score

    score += 1
    has_sz = has_xx = has_dx = has_ts = False

    for c in password:
        if has_sz is False and c in '1234567890':
            score += 1
            has_sz = True
        if has_xx is False and c in 'abcdefghijklmnopqrstuvwxyz':
            score += 1
            has_xx = True
        if has_dx is False and c in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
            score += 1
            has_dx = True
        if has_ts is False and c in '~!@#$%^&*()_+':
            score += 1
            has_ts = True

    score += len(set(password)) // 6
    return score


if __name__ == '__main__':
    password = input('请输入密码：')
    score = password_score(password)
    if score == 0:
        print('密码长度必须大于等于6位')
    elif score <= 2:
        print('密码强度弱')
    elif score <= 4:
        print('密码强度较强')
    elif score <= 6:
        print('密码强度强')
    else:
        print('密码强度超强')