import java.util.*;
import java.io.*;
class Main{
	private static final BufferedReader br =
		new BufferedReader(new InputStreamReader(System.in));
	private static final PrintWriter out =
		new PrintWriter(System.out);
	public static void main(String[] args)throws IOException{

		String[] str = br.readLine().split(" ");
		int N = Integer.parseInt(str[0]);
		int K = Integer.parseInt(str[1]);
		str = br.readLine().split(" ");
		int[] A = new int[N];
		for(int i=0;i<N;i++)
			A[i] = Integer.parseInt(str[i]);
		out.println(dfs(0,0,K,A));

		br.close();
		out.close();
	}
	private static long dfs(int now,long sum,int K,int[] A){
		if(K==0)
			return sum%998244353<=sum%998?1:0;
		if(now==A.length)
			return 0;
		return (dfs(now+1,sum,K,A)+dfs(now+1,sum+A[now],K-1,A))%998;
	}
}