N=int(input())
X=[i-len(str(i)) for i in range(1,N+100)]
DP=[[0]*N for i in range(N+1)]
DP[0][0]=1
mod=998244353
for i in range(N):
  for j in range(N):
    for k in range(len(X)):
      if j+X[k]>=N:
        break
      DP[i+1][j+X[k]]+=DP[i][j]
  for j in range(N):
    DP[i+1][j]%=mod
print(DP[N][N-1])