#include<iostream>
#include <cstring>
using namespace std;
char a[100];
int c=0;
int main(){
    gets(a);
    for(int i=0;i<strlen(a);i++){
    	if(a[i]>='A'&&a[i]<='Z'){
    		c++;
		}
	}
	cout<<c;
    return 0;
}
/**************************************************************
	Problem: 1007
	User: xuanhua
	Language: C++
	Result: Accepted
	Time:28 ms
	Memory:2072 kb
****************************************************************/