#include <iostream>
#include <sstream> 
#include <string>
using namespace std;

int main() {
	
	string line;
	getline(cin,line);
	stringstream ss(line);
	
	string word;
	
	int count=0;
	while(ss>>word){
		count++;
	}
	cout<<count<<endl;
	return 0;
}