import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int cnt = 0;
        while (in.hasNextLine()) { 
            String s = in.nextLine();
            for(int i = 0; i<s.length(); i++){
                if(s.charAt(i)>='A' && s.charAt(i)<='Z'){
                    cnt++;
                }
            }
            System.out.print(cnt);
        }
    }
}