def INT():
    return int(input())


def MI():
    return map(int, input().split())


def LI():
    return list(map(int, input().split()))


from itertools import combinations

N, K = MI()
A = LI()

nums = list(range(N))
cnt = 0
for c in combinations(nums, K):
    S = 0
    for xk in list(c):
        S += A[xk]

    S_998 = S % 998
    S_998244353 = S % 998244353
    if S_998244353 <= S_998:
        cnt += 1

cnt %= 998
print(cnt)