//     Author: Rodney Shaghoulian
//     Github: github.com/RodneyShag
// HackerRank: hackerrank.com/RodneyShag

import java.util.Scanner;

public class Solution {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String str = scan.next();
        scan.close();
        System.out.println(numWords(str));
    }
    
    private static int numWords(String str) {
        int count = 1;
        for (int i = 0; i < str.length(); i++) {
            char ch = str.charAt(i);
            if (ch >= 'A' && ch <= 'Z') {
                count++;
            }
        }
        return count;
    }
}