#include <iostream>
#include <string>

using namespace std;

int camelcase(const string& s) {
    int wordCount = 1; // Start with 1 to account for the first word
    
    for (char ch : s) {
        if (isupper(ch)) {
            wordCount++; // Increment the count for every uppercase letter
        }
    }

    return wordCount;
}

int main() {
    string s;
    cin >> s; // Input the CamelCase string
    cout << camelcase(s) << endl; // Output the number of words
    return 0;
}