N,K=map(int,input().split())
A=list(map(int,input().split()))
left=A[:N//2]
right=A[N//2:]
p=998244353
ps=998
exp2=[2**i for i in range(len(A)+1)]

def half(lis):
    lists=[[[] for _ in range(998)] for _ in range(K+1)]
    for i in range(exp2[len(lis)]):
        ans_long=0
        ans_short=0
        count=0
        for j in range(len(lis)):
            if i&1:
                count+=1
                ans_long+=lis[j]
                ans_long%=p
                ans_short+=lis[j]
                ans_short%=ps
            i>>=1
        if K<count:
            continue
        lists[count][ans_short].append(ans_long)
    for i in range(K+1):
        for j in range(998):
            lists[i][j].sort()
    return lists

import bisect
lefts=half(left)
rights=half(right)
ans=0
for i in range(K+1):
    for j in range(998):
        for t in lefts[i][j]:
            for k in range(998):
                lim=(j+k)%ps
                ans+=bisect.bisect_right(rights[K-i][k],lim-t)
                ans+=bisect.bisect_right(rights[K-i][k],lim-t+p)-bisect.bisect_left(rights[K-i][k],p-t)
                ans%=ps
print(ans)