#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;
ifstream in ("sir.in");

int main()
{
    char s[100],c,c1,c2;
    in>>s;
    cin>>c;
    int i,nr=0;
    if (c>='a' && c<='z')
        {
            c1=c;
            c2=c-'a'+'A';
        }
    else if (c>='A' && c<='Z')
        {
            c1=c;
            c2=c-'A'+'a';
        }
    else
        c1=c2=c;

    for (i=0;s[i];i++)
    {
        if (s[i]==c1 || s[i]==c2)
        nr++;

    }
    cout<<nr;
    return 0;
}