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

int main()
{
    string s;
    while (getline(cin, s)) {
        int ans = 0;
        int len = s.size();
        for (int i = 0; i < len; ++i) {
            if (s[i] >= 'A' && s[i] <= 'Z')
                ans++;
        }

        cout << ans << endl;
    }

    return 0;
}