#include<bits/stdc++.h>
using namespace std;
string s;
int c=0;
int main() {
    getline(cin,s);
      
    for(int i=0;i<s.size();i++){
        if(s[i]>='A'&&s[i]<='Z'){
            c++;
        }
    }
    cout<<c;
    return 0;
}
/**************************************************************
	Problem: 1007
	User: wengzihang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/