print(len(input().split(" ")))

#include<bits/stdc++.h>
using namespace std;
int main(){
string s;
int b=0;
while(cin>>s){
b+=1;
}
cout<<b;
return 0;
}

#include <bits/stdc++.h> using namespace std; int main() { string sentence; int answer; while (cin >> sentence) answer++; cout << answer; }//极致压行

#include<bits/stdc++.h> using namespace std; int main() { //strlen char //length string int s=1; char a[100]; cin.getline(a,100); for (int i=0;i<=100;i++) { if(a[i]==' ')s+=1; }cout<<s; }