CF808G.Anthem of Berland

普及/提高-

通过率:0%

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题目描述

Berland has a long and glorious history. To increase awareness about it among younger citizens, King of Berland decided to compose an anthem.

Though there are lots and lots of victories in history of Berland, there is the one that stand out the most. King wants to mention it in the anthem as many times as possible.

He has already composed major part of the anthem and now just needs to fill in some letters. King asked you to help him with this work.

The anthem is the string ss of no more than 10510^{5} small Latin letters and question marks. The most glorious victory is the string tt of no more than 10510^{5} small Latin letters. You should replace all the question marks with small Latin letters in such a way that the number of occurrences of string tt in string ss is maximal.

Note that the occurrences of string tt in ss can overlap. Check the third example for clarification.

输入格式

The first line contains string of small Latin letters and question marks ss ( 1<=s<=1051<=|s|<=10^{5} ).

The second line contains string of small Latin letters tt ( 1<=t<=1051<=|t|<=10^{5} ).

Product of lengths of strings st|s|·|t| won't exceed 10710^{7} .

输出格式

Output the maximum number of occurrences of string tt you can achieve by replacing all the question marks in string ss with small Latin letters.

输入输出样例

  • 输入#1

    winlose???winl???w??
    win
    

    输出#1

    5
    
  • 输入#2

    glo?yto?e??an?
    or
    

    输出#2

    3
    
  • 输入#3

    ??c?????
    abcab
    

    输出#3

    2
    

说明/提示

In the first example the resulting string ss is "winlosewinwinlwinwin"

In the second example the resulting string ss is "glorytoreorand". The last letter of the string can be arbitrary.

In the third example occurrences of string tt are overlapping. String ss with maximal number of occurrences of tt is "abcabcab".

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