#include<bits/stdc++.h>
using namespace std;
int main()
{
	int i,n,t=0;
	char a[999];
	gets(a);
	for(i=0;i<strlen(a);i++){
		if(a[i+1]==' '&&a[i]!=' ')
			t++;
	}cout<<t+1;
	return 0;
}
/**************************************************************
	Problem: 1106
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/