using System.Numerics;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var n = int.Parse(line[0]);
        var p = int.Parse(line[1]);
        var q = int.Parse(line[2]);
        line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        getAns(n, p, q, a);
    }
    static void getAns(int n, int p, int q, int[] a)
    {
        Array.Sort(a);
        var w = 0L;
        var c = 0;
        for (int i = 0; i < n - 3; i++)
        {
            var w0 = (long)BigInteger.ModPow(10, a[i], p);
            for (int j = i + 1; j < n - 2; j++)
            {
                var w1 = w0 + (long)BigInteger.ModPow(9, a[j], p);
                w1 %= p;
                for (int k = j + 1; k < n - 1; k++)
                {
                    var w2 = w1 + (long)BigInteger.ModPow(7, a[k], p);
                    w2 %= p;
                    for (int L = k + 1; L < n; L++)
                    {
                        var w3 = w2 + (long)BigInteger.ModPow(5, a[L], p);
                        w3 %= p;
                        if (w3 == q) c++;
                    }
                }
            }
        }
        Console.WriteLine(c);
    }
}