#include <bits/stdc++.h>
using namespace std;
int main(){
	int sum=0;
	string s;
	getline(cin,s);
	for(int i=0;i<s.size();i++){
		if(s[i]==' '){
			for(int y=0;;y++){
				if(s[i+y]!=' '){
					i+=y;
					break;
				}
			}
			sum++;
		}
	}
	cout<<sum+1;
	return 0;
}

/**************************************************************
	Problem: 1106
	User: zhouhongyi
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/