using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Runtime.Intrinsics.Arm;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static long[] LList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => long.Parse(ReadLine())).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, m, k) = (c[0], c[1], c[2]);
        var b = ReadLine().Split();
        var a = LList(n);
        var ans = 0L;
        if (b[0] == "+")
        {
            foreach (var ai in a) ans = (ans + ai * m % k) % k;
            for (var i = 0; i < m; ++i) ans = (ans + long.Parse(b[i + 1]) * n % k) % k;
        }
        else
        {
            var asum = 0L;
            foreach (var ai in a) asum = (asum + ai % k) % k;
            var bsum = 0L;
            for (var i = 0; i < m; ++i) bsum = (bsum + long.Parse(b[i + 1]) % k) % k;
            ans = asum * bsum % k;
        }
        WriteLine(ans);
    }
}