#include <iostream>
#include <string>
int main(){
std::string s;
std::cin >> s;
std::string delim = " ";
int=0;
int start = 0;
int end = s.find(delim);
while (end != std::string::npos) {
n++;
start = end + delim.length();
end = s.find(delim, start);
}
std::cout << n;
}