#include <iostream>
using namespace std;

int main() {
    int a, b, c;
    cin >> a >> b >> c;

    int p1 = abs(b - a) * 10 + abs(c - a) * 10;
    int p2 = abs(a - b) * 10 + abs(c - b) * 10;
    int p3 = abs(a - c) * 10 + abs(b - c) * 10;

    int rez = min(p1, min(p2, p3));
    cout << rez << endl;
    return 0;
}