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

int main(void)
{
	string s;
	int cnt = 1;

	getline(cin, s);
	char delim = 0x20;

	for (int i = 0; i < s.length(); i++)
	{
		if (s[i] == delim)
			cnt = cnt + 1;
	}

	if (s[0] == delim)
		cnt--;

	if (s[s.length() - 1] == delim)
		cnt--;

	cout << cnt << endl;
	return 0;
}

 

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