int checker(string a, string b)
{
    unordered_map<int,int> cntA, cntB;
    for(auto i:a)
        cntA[i]++;
    for(auto i:b)
        cntB[i]++;
    int n = cntA['?'];
    for(auto i:cntB)
    {
        if(cntA[i.first] > i.second)
            return 0;
        if(cntA[i.first] < i.second)
        {
            int miss = i.second - cntA[i.first];
            if(n < miss)
                return 0;
            n-=miss;
        }
    }
    return 1;
}
int countAnagram(std::string s, std::string p)
{
    if(p.size() > s.size())
        return 0;
    int cnt = 0;
    for(int i = 0;i<=s.size() - p.size();i++)
    {
        string tmp = s.substr(i, int(p.size()));
        cnt+= checker(tmp, p);
    }
    return cnt;
}