import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String s = in.next();
char a[] = s.toCharArray();
int l=a.length;
int c=1;
for(int i=0;i=65)
c++;
}
System.out.println(c);
}
}