#include<iostream>
#include<algorithm>
#include <vector>
#include<cmath>
using namespace std;
typedef long long int lont;
int main() {
	vector<char>vec(9);
	for (int ia = 0; ia < 9; ia++) {
		cin >> vec.at(ia);
	}
	int cnt = 0;
	for (int ib = 0; ib < 9; ib++) {
		int A = vec.at(ib) - '0';
		if (vec.at(ib) == '0') {
			cnt += 10;
		}
		else {
			cnt += A;
		}
	}
	cout << cnt << endl;
}