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

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