import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    static final int MOD = 998244353;
    static int[] counts = new int[1 << 10];
    static long[][][] dp;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int k = sc.nextInt();
        if (k > 10) {
            System.out.println(0);
            return;
        }
        while (n-- > 0) {
            counts[sc.nextInt()]++;
        }
        dp = new long[k][1 << 10][1 << 10];
        for (long[][] arr1 : dp) {
            for (long[] arr2 : arr1) {
                Arrays.fill(arr2, -1);
            }
        }
        System.out.println(dfw(k - 1, (1 << 10) - 1, (1 << 10) - 1));
    }
    
    static long dfw(int c, int idx, int v) {
        if (c < 0) {
            return 1;
        }
        if (idx == 0) {
            return 0;
        }
        if (dp[c][idx][v] < 0) {
            dp[c][idx][v] = (dfw(c, idx - 1, v) + ((v & idx) == 0 ? 0 : dfw(c - 1, idx - 1, v ^ idx) * counts[idx])) % MOD;
        }
        return dp[c][idx][v];
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}