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


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