import sys
input = sys.stdin.readline
from collections import *

n = int(input())
dp = [0]*n
dp[0] = 1
keta = [len(str(i)) for i in range(210)]
MOD = 998244353

for _ in range(n):
    ndp = [0]*n
    
    for i in range(n-1, -1, -1):
        for j in range(1, 210):
            if i+j-keta[j]<n:
                ndp[i+j-keta[j]] += dp[i]
                ndp[i+j-keta[j]] %= MOD
    
    dp = ndp
    
print(dp[-1])