import java.util.*;
public class Main{
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
int sum = 0;
while(sc.hasNext()){
String str = sc.nextLine();
for(int i = 0;i<str.length();i++){
//str.charAt(i) i对应字符串下标
char ch = str.charAt(i);
if(ch >= 'A' && ch <= 'Z'){
sum++;
}
}
}
System.out.println(sum);
}
}