#include <iostream>
#include <string>

int main() {
    std::string title;
    std::getline(std::cin, title);
    
    int count = 0;
    for (char c : title) {
        if (c != ' ' && c != '\n') {
            count++;
        }
    }
    
    std::cout << count << std::endl;
    
    return 0;
}