#include <iostream>
#include <string.h>
#include <math.h>
using namespace std;


int main()
{
	char s[9];

	cin >> s;
	int sum = 19;
	for (int i = 2; i < 8; i++)
	{
		sum +=  10 - abs(s[i] - s[i + 1]);
	}

	cout << sum;

	system("pause");
	return 0;
}