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