int main()
{
    int counter = 1;

    char str[100];
    cin.getline(str,100);
    char prevChar[1];
    for (int i=0;i<100;i++)
    {
        if(str[i]!=' '&&prevChar[0] == ' ')
        {
            if (isalpha(str[i]))
                counter++;
        }
        prevChar[0] = str[i];
    }




    cout<<counter<<endl;
}