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

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