#define MD 998244353
ll@N,@M,@K,p=1<<N;Mint D[p][M]{};*D[0..p-1]=1;rep(m,1,M)rep(s,p)rep(t,p)D[t][m]+=D[s][m-1]*(__builtin_popcount(s&t)>=K);wt(sum[s,0,p](D[s][M-1]));