#include<bits/stdc++.h>
using namespace std;
int h;
int main(){
	string s;
	getline(cin,s);
	for(int i=0;i<s.size();i++){
		if(s[i]>=65&&s[i]<=90) h++;
	}
	cout<<h;
	return 0;
}

/**************************************************************
	Problem: 1007
	User: zhangziang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/