Scanner in = new Scanner(System.in);
    int count = 0;
    int digit = in.nextInt();
    int num = in.nextInt();
    int thd = num/1000;
    int hnd = (num%1000)/100;
    int tns = (num%100)/10;
    int ones = num%10;
    if (ones == digit)
        count++;
     if (tns == digit)
        count++;
     if (hnd == digit)
        count++;
     if (thd == digit)
        count++;
    System.out.print(count);