import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNextLine()){
String str = sc.nextLine();
char c='1';
int countUp=0;
for(int i=0;i<str.length();i++){
c = str.charAt(i);
if(c>='A' && c<='Z'){
countUp++;
}
}
System.out.println(countUp);
}
}
}
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while(sc.hasNextLine()){
String str = sc.nextLine();
char c='1';
int countUp=0;
for(int i=0;i<str.length();i++){
c = str.charAt(i);
if(c>='A' && c<='Z'){
countUp++;
}
}
System.out.println(countUp);
}
}
}