mod = 998244353
n = int(input())
if n == 1:
    print(1)
    exit()
dp = [[0 for _ in range(n)] for _ in range(n+1)]
dp[0][0] = 1

table = [k - len(str(k)) for k in range(300)]

for i in range(n):
    for j in range(n):
        for k in range(1,220):
            nxt = j+table[k]
            if nxt < n:
                dp[i+1][nxt] += dp[i][j]
                dp[i+1][nxt] %= mod

print(dp[n][n-1])