#include <iostream>
#include <cmath>
using namespace std;

int main() {
    int a, b, c;
    cin >> a >> b >> c;
    
    int site_ednakvi_na_a = abs(a - b) * 10 + abs(a - c) * 10;
    int site_ednakvi_na_b = abs(b - a) * 10 + abs(b - c) * 10;
    int site_ednakvi_na_c = abs(c - a) * 10 + abs(c - b) * 10;
    
    int res = min(site_ednakvi_na_a, site_ednakvi_na_b);
    res = min(res, site_ednakvi_na_c);
    
    cout << res << endl;
    
    return 0;
}