#include<bits/stdc++.h>
using namespace std;
int main(){
    string s;
    int b=0;
	getline(cin,s);
    for(int i=0;i<s.size();i++){
    	if(s[i]>='A'&&s[i]<='Z') b++;
     }
    cout<<b;
    return 0;
}
/**************************************************************
	Problem: 1007
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:21 ms
	Memory:2076 kb
****************************************************************/