#include <bits/stdc++.h>
using namespace std;
int sum=0;
int main(){
	for(;;){
		char m;
		cin>>m;
		if(m=='.')break;
		sum+=isupper(m);
	}
	cout<<sum;
}

/**************************************************************
	Problem: 1007
	User: zhouhongyi
	Language: C++
	Result: Wrong Answer
****************************************************************/