import sys
sys.setrecursionlimit(10**5)

mod=998244353

fact=[1]
for i in range(1,3010):
  fact.append(fact[-1]*i%mod)


memo={}

def f(n,k,x):
  if k==1:
    res=fact[n-1]*(fact[n-1]-1)//2%mod+(x-1)*fact[n-1]%mod*fact[n-1]
    return res%mod
  if (n,k,x) in memo:
    return memo[(n,k,x)]
  res=0
  if x-1>=0:
    res+=(x-2)*(x-1)//2*fact[n-1]%mod*fact[n-2]
    res+=(x-1)*f(n-1,k-1,x-1)
  if n-x>=0:
    res+=(n*(n-1)-x*(x-1))//2*fact[n-1]%mod*fact[n-2]
    res+=(n-x)*f(n-1,k-1,x)
  
  res%=mod
  memo[(n,k,x)]=res
  return res

n,k,x=map(int,input().split())
print(f(n,k,x))