import java.util.Scanner;
/**
* HJ84 统计大写字母个数 - 简单
*/
public class HJ084 {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
String s = sc.nextLine();
System.out.println(count(s));
}
sc.close();
}
private static int count(String s) {
int count = 0;
char[] cs = s.toCharArray();
for (char c : cs) {
if (c >= 'A' && c <= 'Z') {
count++;
}
}
return count;
}
}