using System.Linq;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        line = Console.ReadLine().Trim().Split(' ');
        var s0 = line[0];
        var t0 = int.Parse(line[1]);
        line = Console.ReadLine().Trim().Split(' ');
        var s1 = line[0];
        var t1 = int.Parse(line[1]);
        if (s0 == s1)
        {
            if (s0 == "A") Same(a, t0, t1, 0, 1, 2);
            else if (s0 == "B") Same(a, t0, t1, 1, 0, 2);
            else Same(a, t0, t1, 2, 0, 1);
        }
        else
        {
            if ((s0 == "A" && s1 == "B") | (s0 == "B" && s1 == "A")) Diff(a, t0, t1, 0, 1, 2);
            else if ((s0 == "B" && s1 == "C") | (s0 == "C" && s1 == "B")) Diff(a, t0, t1, 1, 2, 0);
            else Diff(a, t0, t1, 0, 2, 1);
        }
    }
    static void Diff(int[] a, int t0, int t1, int p, int q, int r)
    {
        var root = new long[4];
        root[0] = t0 + t1 - 1L;
        root[1] = (a[p] - t0) + (a[q] - t1) + 1L;
        root[2] = t0 + a[r] + a[q] - t1;
        root[3] = a[p] - t0 + a[r] + t1;
        Console.WriteLine(root.Min());
    }
    static void Same(int[] a, int t0, int t1, int p, int q, int r)
    {
        if (t0 > t1) { Same(a, t1, t0, p, q, r); return; }
        var root = new long[3];
        root[0] = t1 - t0;
        root[1] = t0 + a[q] + a[p] - t1;
        root[2] = t0 + a[r] + a[p] - t1;
        Console.WriteLine(root.Min());
    }
}