#include <iostream>
#include <string>
#include <sstream>
#include <iterator>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
	string s = "Bob Accountant 65 retired";
	vector<string> vs;
	istringstream iss(s);
	copy(istream_iterator<string>(iss), istream_iterator<string>(), back_inserter(vs));
	cout << vs.size() << endl;
	return 0;
}