#include <iostream>
#include <string>

int main(void){
	int num[10] = {
		1, 0, 0, 0, 1, 0, 1, 0, 2, 1	
	};
	int count=1;
	std::string n;
	std::cin >> n;
	for (int i = 0; i < n.length(); i++){
		count += num[ n[i]-'0'] +2;
	}
	std::cout << count <<std::endl;
	return 0;
}