#include <iostream>
using namespace std;

/* Define your function here */
int CountCharacters(char userChar, string userString)
{
 int count = 0;
 int size = userString.size();
 for(int i = 0; i < size; i++)
 {
    if(userString.at(i) == userChar)
    {
      count++;
    }

 }
 return count;

}
int main() {
   /* Type your code here. Your code must call the function.  */
   char a;
   string b;
   cin >> a >> b;
   cout << CountCharacters(a,b) << endl;
   return 0;
}