#include <iostream>
#include <string>

using namespace std;

int countNonWhitespaceCharacters(const string& title) {
    int count = 0;
    for (char c : title) {
        if (c != ' ' && c != '\n') {
            ++count;
        }
    }
    return count;
}

int main() {
    string title;
    getline(cin, title); // 使用getline确保能够读取包含空格的整行

    int result = countNonWhitespaceCharacters(title);
    cout << result << endl;

    return 0;
}