시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
1 초 128 MB 0 0 0 0.000%

문제

A wild number is a string containing digits and question marks (like 36?1?8). A number X matches a wild number W if they have the same length, and every non-question mark character in X is equal to the character in the same position in W (it means that you can replace a question mark with any digit). For example, 365198 matches the wild number 36?1?8, but 360199, 361028, or 36128 does not. Write a program that reads a wild number W and a number X from input, both of length n , and determines the number of n -digit numbers that match W and are greater than X .

입력

There are multiple test cases in the input. Each test case consists of two lines of the same length. The first line contains a wild number W , and the second line contains an integer number X . The length of input lines is between 1 and 10 characters. The last line of input contains a single character #.

출력

For each test case, write a single line containing the number of n -digit numbers matching W and greater than X (n is the length of W and X ).

예제 입력

36?1?8
236428
8?3
910
?
5
#

예제 출력

100
0
4

힌트