#include "iostream"
#include "string"
#include "stdlib.h"
#include "math.h"
using namespace std;

int compare (const void * a, const void * b)
{
  return ( *(int*)a - *(int*)b );
}

char s[10001];
char p[10001];


int a[1000];
int b[1000];
int main()
{
#ifndef ONLINE_JUDGE
   freopen("input.txt", "rt", stdin);
   freopen("output.txt", "wt", stdout);
#endif
//==============================================================
        int i=0,sn=0,pn=0,nar=0;
        scanf("%c",&s[i]);
        while (s[i] != 'n')
        {
                i++;
                scanf("%c",&s[i]);
        }
        sn=i;
        i=0;
        scanf("%c",&p[i]);
        a[p[i]]++;
        while (p[i] >= 'a' && p[i] <= 'z')
        {
                i++;
                scanf("%c",&p[i]);
                a[p[i]]++;
        }
                pn=i;
                if (pn > sn) 
                {
                        cout << 0;
                        return 0;
                }
                for (int j = 0; j < pn;j++)
                {
                        if (s[j] != '?')
                        {
                                b[s[j]]++;
                                if (b[s[j]] > a[s[j]])
                                        nar++;
                        }
                }
                int ot=0;
                if (nar==0) ot++;
                for (int j = pn; j < sn; j++)
                {
                        if (s[j-pn] != '?')
                        {
                                b[s[j-pn]]--;
                                if (b[s[j-pn]] == a[s[j-pn]])nar--;
                        }
                        if (s[j] != '?')
                        {
                                b[s[j]]++;
                                if (b[s[j]]-1 ==  a[s[j]])nar++;
                        }
                        if (nar==0) ot++;
                }
                cout << ot;
     return 0;
}