#include <bits/stdc++.h>
using namespace std;
int main()
{
   	ios::sync_with_stdio(false);
   	cin.tie(0);
	int a;
	string s;
	cin >> s;
	for (int i=0;i<=s.length();i++)
	{
		if(s[i] == " " || s[i] == "\n")
		{
			continue;
		}
		a++;
	}
	cout << a << endl;
	return 0;
}