#include <iostream>
#include <cctype> 
#include <string>
using namespace std;

int main() {
    string s;
    int count = 0; 
    getline(cin, s);
    for (char c : s) {
        if (isupper(c)) { 
            count++;
        }
    }
    
    cout << count << endl; 
    return 0;
}
/**************************************************************
	Problem: 1007
	User: fuhoubin
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2076 kb
****************************************************************/