|시간 제한||메모리 제한||제출||정답||맞은 사람||정답 비율|
|2 초||512 MB||25||7||7||36.842%|
Cafe Bazaar, the famous Iranian android market, is looking for creative software developers. A group of applicants are attending an interview, and the company wants to select the fastest developer who can code simple rules accurately. As a test, all applicants should quickly develop a bank card verifier that determines whether a payment card number is valid or not.
All payment card numbers are 16 digits long. The leftmost 6 digits represent a unique identification number for the bank who has issued the card. The next 2 digits determine the type of the card (e.g., debit, credit, gift). Digits 9 to 15 are the serial number of the card, and the last digit is used as a control digit to verify whether the card number is valid. Hence, if somebody enters the card number incorrectly, there is a high chance that a payment software can easily determine it.
For a valid card number, the last digit is selected in such a way that the following algorithm passes:
Your task is to read several card numbers from the input, and determine whether each one is a valid card number or not.
There are multiple test cases in the input. Each test is given in one line consisting of four space-separated 4-digit strings. The leftmost digit of the given card number is guaranteed to be non-zero. The input terminates with a line containing “0000 0000 0000 0000” that should not be processed.
For each test case, output a line containing “Yes” or “No” depending on whether the card number is valid or not, respectively
6104 3376 7866 1545 6104 3376 7866 1546 5022 2910 0140 7954 0000 0000 0000 0000
Yes No Yes