#include<bits/stdc++.h> using namespace std; int main() { string s1; getline(cin,s1); int k=0; int a=s1.size(); for(int i=0;i<a;i++){ if(s1[i] == ' ' and s1[i+1] !=' '){ k++; } if(i==a-1){ k++; } } cout<<k; }