# import pypyjit;pypyjit.set_param("max_unroll_recursion=-1")
import os
import sys

# from bisect import *
# from collections import *
# from datetime import *
# from decimal import *  # PyPyだと遅い
# from heapq import *
from itertools import *

# from math import gcd, lcm
# from random import *
# from string import *

# import numpy as np
# from atcoder.dsu import *
# from atcoder.segtree import *
# from more_itertools import *
# from sortedcontainers import *

# sys.setrecursionlimit(10**7)  # PyPyは呪文を付ける
# sys.set_int_max_str_digits(0)
INF = 1 << 61
MOD = 998244353
# MOD = 10**9 + 7
IS_ATCODER = os.getenv("ATCODER", 0)

File = sys.stdin


def input():
    return File.readline().replace("\n", "")


# ///////////////////////////////////////////////////////////////////////////


N, K = map(int, input().split())
A = list(map(int, input().split()))

ans = 0
for i in combinations(A, K):
    s = sum(i)
    s998 = s % 998
    smod = s % MOD
    if smod <= s998:
        ans += 1

print(ans % 998)