#include<bits/stdc++.h>
using namespace std;
int main(){
    int ans=0;
   string s;
   getline(cin,s);
   for(int i=0;i<s.size();i++){
    if(s[i]>='A'&&s[i]<='Z')ans++;
   } 
   cout<<ans;
}
/**************************************************************
	Problem: 1007
	User: zhengzihao
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/