#include <iostream> #include <vector> #include <string>

using namespace std;

int count_time(const string& str) { int time = 0;

for (const auto ch : str) {
	int index = ch - 'A';
	index /= 3;

	if (ch == 'S')
		index = 5;
	else if (ch == 'V')
		index = 6;
	else if (ch > 'X' )
		index = 7;

	time += index + 3;
}

return time;

}

int main() { cin.tie(nullptr); ios_base::sync_with_stdio(false);

string str;
cin >> str;

cout << count_time(str) << "\\n";

return 0;

}