import sys
input = sys.stdin.readline
MOD = 998244353
N, M, K = map(int, input().split())
dp = [[0 for _ in range(1<<(N*2))] for _ in range(M)]
for i in range(1<<N):
    dp[0][i] = 1
for i in range(M-1):
    for j in range(1<<(N*2)):
        if dp[i][j]==0:
            continue
        for k in range(1<<N):
            nj = (j&((1<<N)-1))<<N
            nj |= k
            cnt = 0
            for l in range(N):
                if (nj&(1<<l))!=0 and (nj&(1<<(l+N)))!=0:
                    cnt+=1
            if cnt>=K:
                dp[i+1][nj] += dp[i][j]
                dp[i+1][nj] %= MOD
#print(dp)
ans = 0
for d in dp[M-1]:
    ans += d
    ans %= MOD
print(ans)