#include <bits/stdc++.h>
#include <atcoder/modint>
using namespace std;

using Mint = atcoder::static_modint<1234567891>;
int main()
{
	int N;
	long long M;
	cin >> N >> M;
	vector<int> A(N);
	for (int &a : A)
		cin >> a;

	vector<Mint> D = {1};
	while (M)
	{
		for (int a : A)
		{
			D.resize(D.size() + a);
			for (int i = (int)D.size() - 1; i >= a; i--)
				D[i] += D[i - a];
		}
		vector<Mint> E;
		for (int i = M & 1; i < (int)D.size(); i += 2)
			E.push_back(D[i]);
		D = E;
		M >>= 1;
	}
	cout << D[0].val() << endl;
}