#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,s=0;
	char a[99];
	gets(a);
	for(i=0;i<strlen(a);i++){
		if(a[i]>='A'&&a[i]<='Z')
			s++;
	}
	cout<<s;
return 0;}

/**************************************************************
	Problem: 1007
	User: fzy001
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/