N,K = map(int,input().split())
A = list(map(int,input().split()))
P = 998244353

import sys
if K > 10:
    print(0)
    exit()

C = 2 ** 10
dp = [[[0] * C for _ in range(K+1)] for _ in range(C)]
dat = [0] * C
dp[0][0][0] = 1
for a in A:
    dat[a] += 1
for bit in range(C-1):
    for k in range(K+1):
        for S in range(C):
            dp[bit + 1][k][S] += dp[bit][k][S]
            if (bit+1) & S == 0 and k < K:
                dp[bit + 1][k+1][S | (bit+1)] += dp[bit][k][S] * dat[bit+1] % P
                dp[bit+1][k+1][S | (bit+1)] %= P
ans = sum(dp[-1][K]) % P
print(ans)