N,M,K=map(int,input().split())

T=max(M,K)+1
mod=998244353

dp=[[[0]*(T+1) for i in range(N+1)]for i in range(T+1)]

dp[0][0][0]=1

for i in range(1,T+1):
    for j in range(N+1):
        for k in range(i):
            if i<=M and j<N:
                dp[i][j+1][k]=(dp[i][j+1][k]+dp[i-1][j][k])%mod
            
            dp[i][j][i]=(dp[i][j][i]+dp[i-1][j][k]*pow(i,max(0,min(i,K)-k),mod))%mod

S=[[0]*(N+1)for i in range(N+1)]
S[0][0]=1
for i in range(N):
    for j in range(i+1):
        S[i+1][j]=(S[i+1][j]+S[i][j]*j)%mod
        S[i+1][j+1]=(S[i+1][j+1]+S[i][j])%mod

fac=[0]*(N+1)
fac[0]=1

for i in range(1,N+1):fac[i]=(i*fac[i-1])%mod

ans=0

for i in range(1,N+1):
    ans=(ans+dp[T][i][T]*S[N][i]%mod*fac[i])%mod

print(ans)