#include <iostream>
using namespace std;
 
int main() {
    char ch;
    int count = 0;
 
    while (cin >> ch) {
        if (ch == '.') {
            break;
        }
        if (ch >= 'A' && ch <= 'Z') {
            count++;
        }
    }
 
    cout << count << endl;
 
    return 0;
}
/**************************************************************
	Problem: 1007
	User: wuweimo
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/