/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
    public static void main(String[] args)
    {
        int[] red = { 10, 20, 30, 40, 50, 60, 70, 80, 90, 99 };
        int[] blue = { 90, 80, 70, 60, 50, 40, 30, 20, 10, 1 };
        System.out.println(solve(0, 0, 0, red, 0, blue));
    }
 
    static int solve(int pos, int distance, int r, int[] red, int b, int[] blue)
    {
        if (r == red.length && b == blue.length) return distance + Math.abs(100 - pos);
        return Math.min(
                r == red.length ? Integer.MAX_VALUE : solve(red[r], distance + Math.abs(red[r] - pos), r + 1, red, b, blue),
                b == blue.length ? Integer.MAX_VALUE : solve(blue[b], distance + Math.abs(blue[b] - pos), r, red, b + 1, blue)
                );
    }
}

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