#include <iostream>
#include <string>
#include <cstring>

using namespace std;

int wcount(string str)
{
    bool f;
    int i, word;

    word = 0;
    f = false;

    for(i = 0; str[i] != '\0'; i++)
        if (str[i] != ' ' && f == false)
        {
            word++;
            f = true;
        }

        else if (str[i] == ' ') f = false;

    return word;
}

/*void word_count(string str)
{
    int c = 0;
    //cout << str.length() << endl;

    for (int i = 0; i < strlen(str.c_str()) / 2; i++)
        if (((int)str[i] >= 97) && ((int)str[i] <= 122) || (((int)str[i + 1] == 32) || str[i + 1] == '\0')) c++;

    cout << c;
}*/

int main()
{
    string str;
    getline(cin, str);
    //word_count(str);
    int k = wcount(str);
    cout << k;

    return 0;
}