using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var x = NList;
        var a = NList;
        var dp = Enumerable.Repeat(long.MaxValue / 2, n + 1).ToArray();
        dp[0] = 0;
        for (var i = 0; i < dp.Length; ++i)
        {
            var xor = 0;
            for (var j = i + 1; j < dp.Length; ++j)
            {
                xor ^= a[j - 1];
                dp[j] = Math.Min(dp[j], dp[i] + x[j - 1] - x[i] + xor);
            }
        }
        WriteLine(dp[n]);
    }
}